There are many people who expect a "service" and are willing to pay a set price for it. I think this is reasonable. You go to a restaurant; you are not expecting to have to help out in the kitchen.
I suspect quite a few turn up at a gliding club, not realising the scene is like that.
Example: I windsurf, on the sea. There is a "community" but basically you can do it all on your own (on the sea, anyway). Up the road is a huge lake and seeing loads of boating etc there I thought I will give it a try, and drove there to enquire. I was sent off to a snotty sailing club manager who explained that nobody was allowed to be a member unless they helped with certain duties, and would be evicted if they missed 3+ duty assignments.
He also added that I "did not have big enough t*ts" at which point I got the message
