The biggest driver of SUV purchases in my social group is mothers who are keenly aware that more mass = more protection for their children in the event of a col

The biggest driver of SUV purchases in my social group is mothers who are keenly aware that more mass = more protection for their children in the event of a collision. Of course, this makes things worse for the other party in the collision and leads right back to the same arms race in car size, or worse since a hollow shell can win an ego display but only a wrecking ball can win a collision. We should probably tax this, but I expect that people with big cars will kill the tax before the tax kills big cars. The eventual answer will probably lie in city centers or neighborhoods that ban or heavily disincentivize big cars within their borders.