(1) As a woman, I find the gym upstairs to be far too much of a pick-up joint. I loathe being chatted up by guys I dont know "hey, great stretches!!!" (right) and I stopped going because of that (and it's not like a 50 yr old in a baggy shirt and sweats is looking for it). I also don't find a lot of programming for me in the early evening (I refuse to show up half an hour early to secure a spot in a class--who has that kind of extra time to waste?)
(2) Also, there are even fewer options for my 14 yr old. Sunday afternoon for instance, there is kid basketball (9-12) and table tennis (16+), and while there is free swim, that's not good for exercise (you need lane swimming for that). He's been hassled by members and staff that he's not allowed to use the equipment in the gym (really, like a 5'9" athletic guy can't work an exercise bike???) and he is made to use the family locker rooms which don't accomodate a lot of people (where 14 yr old girls can use the women's).