"1. Depends on the back"
True. There also is a limit on how far a facility can go for accomodating various problems. Should beds be provided? In the case that I mentioned, the venue provided reasonable accomodations to all handicapped.

By the way, I have also seen the club accomodate wheelchairs, provide reserved seating up front for people with hearing and vision handicaps, etc. They made sure the building they use is handicap accesible (no steps, large doors, bathroom facilities, etc.).

"2. Depends on the chair"
They did not have the audience sitting on wobbly stools. The chairs provided are standard chairs that meet all legal requirements.

"3. Some have a fetish about arguing for the sake of it. "
How very true.