Fully agree with Marje's posting and particularly liked the first sentence of the last paragraph.
My wife and I (both retired) and a friend ( still working) are a trio playing local clubs and charity events. As far as we are concerned we do this for fun but don't refuse payment when offered. We get a fair bit of pleasure by being asked back - I hope because of of performance and not our fee level.

The main thing is we get a lot of fun playing our music. Long may we be fit to continue.