It would be interesting to see some kind of data on this. I have a mutual friend that does tours in Europe. This was his and his worker's sentiments as well.

It would be interesting to see some kind of data on this. I have a mutual friend that does tours in Europe. This was his and his worker's sentiments as well. Talking with them we thought there may be a lot of self-filtering going on in his situation. He does historical tours and those seem to attract a less rowdy group.