> The safety aspect is a collective action problem. When only one person buys a smaller car they're not safer, so you need to get everyone to change. The diff

> The safety aspect is a collective action problem. When only one person buys a smaller car they're not safer, so you need to get everyone to change. The difficulty with getting people to agree to that is that when it comes to crashes between two cars, or between one car and some stationary object like a big tree, "everyone has a smaller car" is less safe than "everyone has a larger car". "Everyone has a smaller car" would be safer for pedestrians and cyclists, but something like 80% of deaths involving cars are from cars hitting cars or cars hitting stationary objects accidents so that's probably going to be the priority for most people.