56% of students polled in the UK reported that they had experienced "unwanted sexual behaviour". That is a very broad class. At the upper limit it includes rape and violence, which are grave.

However, there is no obvious lower limit to what that could include. Winking too often? Staring for a few minutes from a distance? A request for a date from someone you don't want to go out with? The high fraction could mean only that the line is drawn too low.

If we want to deal with the severe problems, mixing up violence with minor annoyance and everything in between is not a useful approach.