Well said, Joe G!

And I hope my comment on the thread topic won't sound combative, but it's an observation of things that sometimes regrettably happen, and annoy me just a little.(And I may have mentioned this previously on other threads).
You go to a singing session which is advertised as "a chance for everyone to sing", but said session has a "host" who picks and chooses who shall sing next, maybe more than once in the session, leaving others, whose faces are less well-known, silent and uninvited on the sidelines. This, to me, is either folk snobbery - or total ignorance/lack of imagination in not recognising that pretty well all the people in the room are active singers, whether mein host knows them or not, and might like a wee turn, please!
I'll qualify this by saying this is very much a minority situation, and most sessions I go to do give everyone an equal chance of leading a song.