I replaced my 14 year old Saturn with over 150K miles when the mechanic said fixing it was not worth it. I replaced my next car, a Prius, after ten years when the repair estimate was well over the value of the car. But I think I could have gotten it fixed for less, but getting a new car was worth it for the safety features which are far more important to me as I age. I’ve never needed automatic braking, but I’m glad it’s there.
Mileage is not going to be an issue ever, since I no longer commute.