I don’t see why that matters

I was getting at the fact that most musicians are not professionals.

it is fine to wish I wish for a world where musicians make music because they like it, and as you added, many do make music just for fun.

However, the musicians that that sing and dace on command even when they don't feel like it are a different category.

I think it is weird to expect someone to work when and where the customer wants, but also do it for fun and not for money

But who expects that?

Fans who go to shows, and most who listen to live music. People don't go to a venue and hope someone they like shows up. They want want to know beforehand, and are willing to pay the artist to show up even if they wouldn't want to otherwise.