Friend: "Your band played great at the club last night!"
Me: "Thanks"
Friend: "Seemed packed, how much you pull at the door?"
Me: "$600"
Friend: "So that's $200 in your pocket, not bad for 45 minute set. Nice profit on a side gig"
Me: "First off, the drumkit cost over $10k all said and done, so the door will never cover any of that. Add in my time for load in, load out, cases for the drums, heads for the snare and kick, plus sticks, and you well over $200. Never mind the 100s of hours for rehearsals."
Friend: "Oh....."
Don't worry about making money on your hobby. Just go and have fun.