I'm so very sad to hear this. I agree with everyone you were doing your best for her by getting an education, and the fault here lies with the drunk driver. I was hit head on in a car accident with a drunk driver when I was 23 and it was awful. I walked away from it but I had a bruised sternum and extensive soft-tissue injuries from the force of the impact. I was in physiotherapy for a year and a half. I cannot imagine how badly I would have been hurt if I had not been wearing a seatbelt. So yes it was negligent of your babysitters not to put her in a carseat, but it was still the drunk driver with the primary fault. And you absolutely did the right thing taking her off life support -- she must have had extensive brain injury that they thought she wouldn't wake up, and nobody deserves to be in constant pain. I would certainly want someone to take me off life support under those circumstances.
Never spend another moment doubting your actions. That is an order! I am sending a tiny angel the size of a Barbie doll to sit on your shoulder and pinch you if you ever experience another thought of guilt or self-blame!!! I hope your daughter is in a better place and you get to see her again one day - remember what's done is done and your daughter loved you and would not want you to suffer either.
Never spend another moment doubting your actions. That is an order! I am sending a tiny angel the size of a Barbie doll to sit on your shoulder and pinch you if you ever experience another thought of guilt or self-blame!!! I hope your daughter is in a better place and you get to see her again one day - remember what's done is done and your daughter loved you and would not want you to suffer either.