The first problem is a problem with US drivers in general. I don't know what we should do about it, except perhaps test people's driving abilities more frequen

The first problem is a problem with US drivers in general. I don't know what we should do about it, except perhaps test people's driving abilities more frequently. I, for one, honk at people who fuck up my roundabout experience. I think the second problem is an acceptable tradeoff, but ymmv