My In-Laws Totaled My Son’s Car Seat and Now Demand I Pay For Theirs Instead

A quiet tension simmered beneath family ties, where love for the children masked the fragile relationship between two sisters-in-law. Though united by their sons’ friendship, the subtle clashes and unspoken frustrations lingered, creating a delicate balance between civility and resentment.

When a simple favor spiraled into weeks of silence and unreturned car seats, the cracks in their connection began to widen. What started as a casual afternoon at the park became a quiet battleground, revealing deeper struggles in trust and respect within the family’s fragile harmony.

My In-Laws Totaled My Son’s Car Seat and Now Demand I Pay For Theirs Instead

I am married to a great man and we have a son together, “Noah” (3m). My husband’s sister and her partner also have a son the same age, “Brody”. We don’t speak very often as we tend to clash a little bit, but are usually civil enough for the kids sake.

My in-laws live within walking distance to our house, and they asked to take Noah to the park. We of course, had no problem with this, and switched his car seat from my car into theirs.

They had a fun afternoon and then came home. However, we forgot to take the car seat out of their car. No matter! I wasn’t going anywhere so I said I would pick it up the next day.

The next day came and they made excuses that they were using the car. I let it go, but a day soon turned into nearly a week and I still had no car seat for Noah. We didn’t need it, as everything we needed was within walking distance, but it was just a bit annoying.

Anyway, on the Saturday my husband hears that MIL was babysitting Brody for the day.

MIL picked him up and used Noah’s car seat, despite Brody having his own. Apparently they didn’t want to make a fuss of switching them. (This is actually a point where me and SIL clash, as I prefer to rear face my son as long as possible and have bought a pricier seat to do so, whereas she believes this is stupid and a waste of money, and has an own-brand front facing seat which costs significantly less than our ERF one- and has been very vocal about how bad my choices are, how cruel I am, he must be bored/uncomfortable) so I was surprised to hear that she was happy to put Brody in such an “uncomfortable” seat.

Long story short, they ended up in an accident. Everyone was fine, Brody included, which in part was due to the car seat. Obviously, since it was in an accident, it now needed replacing.

The problem lies here.

My SIL (and now MIL too) insist that, should their insurance pay for a new seat, they use the money to pay for a new seat to replace Brody’s front facing one. I disagree, it was their choice to buy that seat and they still have it.

If they want a new one, they should pay for it. They used our seat that belongs to my son and now we don’t have one at all. So we should get the replacement, since it was our seat in the first place.

I think I’m right because it’s an expensive seat and we aren’t made of money. MIL and SIL are calling me an AH to put a price on Brody’s safety but I disagree, she was the one to put a price on it by buying him a cheap seat in the first place, saying it doesn’t matter and it’s “only a car seat” when she knew the risks of what she was buying- I tried to help her back when she got it but she told me I was stupid and would do better listening to her.

We now have no car seat and will have to fork out for a new one, which I don’t think is fair but they seem to think I’m being awful by expecting ours to be replaced and not Brody’s.

I feel like I’m in a fever dream.

Here’s how people reacted:

SpiritualMeet755

This is such an obvious NTA that I’m genuinely shocked. WTH is wrong with these people – do they not realise how dangerous it is that you now don’t have a car seat for your own son? They’re basically prioritizing their son’s safety (who already has a car seat) over your son’s (who has no car seat because of them).

Both SIL and MIL are TAs here bigtime and I’d ask your MIL why she thinks Brody’s safety is more important than Noah’s. What does your husband think about the whole thing?

[deleted]

Nta, they borrowed your car seat and it got damaged in an accident. They need to replace it with the insurance! Of course. I can’t comprehend why they would do anything else.
If you had had an accident using their car seat, I’m sure you can bet your bottom dollar they would demand you replace it. It’s a very simple principle.
It’s not like they are being asked to pay out of their own money either, thats precisely what insurance is for. Stand your ground and good luck!
GotHotCakes

NTA

How are MIL & SIL even arguing about this?

How would she feel if the tables were turned.

Hypothetically say you’d borrow her car which had more airbags and safety features. But you got into an accident, everyone was ok (because of said safety features) – and when insurance replaced the car you kept that one and said you can have my car without airbags.

The whole family would rightly be up in arms

Thediciplematt

NTA.

Wow. The story was so straightforward but then you lost me at paying for a seat for the other kid… the one that already has a seat…. yet they used and threw yours away. Leaving you with no seat. Yet they want to use the insurance money to buy a safer seat for the kid who already has one.

There is a lesson in The US economy here somewhere…

The mental gymnastics here is mind boggling.

BeastOfArrrggghhh

NTA. They basically held YOUR seat hostage, used it even after telling you how ‘stupid’ you are (which you are most definitely not!) for buying it and now that they wrecked it, even after it possibly saved their sons life, they want to be even bigger assholes? Unbelievable.

The in-laws are also assholes for enabling this and ignoring the needs and safety of your son for their blunder.

neverthelessidissent

NTA, but your husband seriously needs to step in here. It’s his mom and sister who stole the car seat that you need for your kid, and you’re the one arguing with them about replacing it?

What happens if your kid had a medical emergency or needed to get somewhere ASAP? Would they have paid the ambulance bill?

Dandilionessinmess

NTA let your husband handle his mom and stand up for his son. You don‘t break someone else‘s car seat and then expect you buy a new one yourself. They don‘t even have to pay for it out of their own pocket. If SIL now wants another car seat for brody for safety reasons, she can buy it herself.
BlameChina4it

ESH, they or their insurance should replace the car seat if it was not safe now, but you also had at least a week to retrieve it yourself and did not do it. The fact that they bought Brody a new seat has nothing to do with their obligation of replacing Noah’s.
eelzelton

INFO are MIL and SIL wanting to give you the car seat that was in the accident back or are they just thinking you aren’t owed a car seat. I mean either way NTA but I’m just not following their logic. You’re out a car seat how is that not being addressed….
Millerbomb

NTA I’m surprised you have to tell adults this but when you break something you replace it with the same item or that of similar value. You can’t choose a lesser product and assume the owner will be satisfied
Azdomiel

NTA

The thing that insurance is replacing belongs to you. Why on earth would they “replace” it by giving a gift to someone else? That’s not replacing anything, it’s straight up theft.

Available_Nobody_404

NTA – she owes you a car seat and her sons life. The very least thing she should do is replace you YOUR car seat and buy another one for herself.
AnotaCocktail

INFO: I’m not even sure I understand what’s going on. If your seat was the one damaged, why does anyone think the other seat should be replaced?
festivehedgehog

NTA!!! This is absurd. Yes, everyone’s glad that Brody was unharmed, but they need to reimburse you for the car seat regardless.
zipperoff

INFO: I’m so confused… they damaged your item but want to buy a new one for someone else? Huh? Like where is the logic?
bubobubosibericus

NTA: they stole and broke YOUR car seat and now want to keep the replacement for themselves? That’s just crazy
involuntary_cynic

NTA. They borrowed and wrote off your carseat. They need to replace that. They still have their original one.
Kris82868

NTA. What does Brody’s front facing seat have to do with the accident? Wasn’t it Noah’s that was destroyed?

Conclusion

The original poster (OP) is in a difficult position, feeling justified in demanding a direct replacement for their expensive, safety-oriented car seat after it was damaged while being used by the sister-in-law’s child. The core conflict stems from the disagreement over who should bear the cost of the replacement: the OP believes the insurance payout for the destroyed seat should go towards replacing their specific seat, while the in-laws insist the funds should be used to upgrade the child who was actually in the seat (Brody) to a new seat, effectively using the insurance money to upgrade their own equipment.

Is the OP justified in demanding that the insurance money received for their destroyed, expensive Extended Rear Facing (ERF) seat be used exclusively to purchase an identical replacement for their son, Noah, or should the funds instead be directed toward purchasing a new seat for Brody, given that Brody was the child using the damaged seat during the accident?

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