There's a fix for that....
I wish there were. It takes a certain amount of extra discipline and courtesy to negotiate a "roundabout". Not traits found in abundance on the roads I travel. I grew up driving the Flemington & Sommerville circles (NJ) and later on frequently drove through the little hamlets along US 30 in Pennsylvania. Each one had its own little circle. Enough people don't know how to drive 'em to make it... ah... interesting!