I tend to assume they're going to be an idiot and turn. I'm not going to yield my right of way, but I'm going to prepare to stop. Just because something is a rule, doesn't mean people are thinking properly.

In the UK we have to take a specific test for hazard perception to see if we're capable of thinking about this kind of situation, before we can take the practical test for a licence.

The cyclist was in the wrong for turning, and legally there is nothing against the car. But the car was also in the wrong for not assessing the situation and preparing to stop, in case the cyclist was daft, which they were.