> Anyone who knows these facts and buys a giant "car" anyway is so selfish and reckless they have no business driving. That really doesn't take into considerat

> Anyone who knows these facts and buys a giant "car" anyway is so selfish and reckless they have no business driving. That really doesn't take into consideration the negative sum nature of car safety that your sibling comment goes into. The issue is that safety requirements for vehicles are largely about occupants. They don't include sightlines, maximum heights, maximum weights, etc. (things that would make other people safer) thus the incentive is to build tanks. Parents certainly don't need a huge SUV to fit their kids in but, because there are other SUVs on the road, they do want it for safety. Put the right incentives into your safety regulation and cars will shrink.