[mulmen]

We have roundabouts. We don’t have them everywhere but then I bet you don’t either.

My home town in Idaho has built at least five I am aware of in as many years, with more planned.

My neighborhood in Seattle plants a tree in the middle of unmarked intersections which effectively creates a mini roundabout.

[krisoft]

> I bet you don’t either.

Oh you haven’t been to the UK if you think that. :) They are absolutely everywhere. Traffic planers love them.

[Polizeiposaune]

I've driven in England and New Zealand, and they really had them everywhere.

Yes, we have them in the US, but we don't have enough of them that you can expect that all drivers know what to do with them. It's entirely too common for approaching drivers to be unaware that they must yield to vehicles already in the circle.