Uh... The best case scenario is two smaller cars. Riding a bigger car to protect yourself is not only extremely selfish, but entirely counterproductive as you encourage other people to do the same. This is very much a tragedy of the commons situation.

which one would you rather have your kid cross the street in front of?

Not the one with significantly higher rollover fatalities, that's for sure.

Just admit you're scared to drive and stop driving.

Train, bike, bus, etc.

And this is why i avoid roads whenever possible, god bless my city for having so many bike/pedestrian underpasses so we don't have to even come close to the death boxes most of the time.

Thanks for demonstration how being a parent can actually make you a worse person. Your children, or OPs for that matter, deserve to be safe and secure only as much as anyone else's, despite what your hormones may have convinced you.