I don't come to this place to learn things (what kind of shady site are y'all running here anyway?)! But I learned that traffic circles and roundabouts are different things.
We do have a roundabout in town but I was talking about traffic circles.
So the roundabout might cause problems, but not if you just look at the signs before entering.
Things I have seen at traffic circles:
A woman pulled into the flow of traffic when she should not have and then stopped, blocking the traffic completely. She looked a little frazzled and it took her a few seconds to get moving again.
A person tried to make a left, that is going against the flow of traffic, and only stopped when a car came from that direction. They had to do a three-point reverse to get going again.
But what I see the most often, and surprisingly frequently, is people coming to a complete stop before proceeding on.
It's a yield sign! If there is no oncoming car you go; if there is, you stop. Super-easy.
And a car entering on the other side of the circle is NOT an oncoming car. It has to slow down and navigate around the bend before it gets to you, if it is not going to continue down the street it's already on that is, so you have a few seconds! Go!
There should be no way to mess this up.