I went to the gym today after school, and they told me I couldn't work out there without a parent, cause I'm not 17. I'd gone there plenty of times by myself and no one said a word. They were polite about and let me work out today. I don't go in there and raise hell, and I try to be courteous to teh other gym attendees who, between you and me, need to use the gym more than me. So what do you think should be the minimum age to be at a gym alone?