I was in Galway a few years back and later returned to find a few young British new-age hippies. They could play a decent tune but refused to learn the names ("It's not considered cool").

I asked if the local musicians let them join the sessions, "We don't always bother asking, we just set in there and start playing"

Bet that went down well.

It was in stark contrast to when I was doing a wee gig in Wexford and was approached by an elderly chap who asked if he and his friend might join my "session". As a young greenback I of course agreed. He pulled out a set of pipes and started playing. Someone with him told me he was one of the founders of a specific Irish music association (I forget which). What showed that this was such a class gentleman was not only his playing but his politeness and formality when asking to join, and then participating in a session run by a British... bodhran player.