What gyms would let a 12 year old in? ADVERTISEMENT 5.73K viewsMarch 28, 2015 0 sophie March 28, 2015 0 Comments I want to join the gym and want to spend time with my daughter who also has been wanting to join I’m just wondering what gyms would let her in 13 Answers ActiveVotedNewestOldest 0 Harris12 Posted 0 Comments Although each gym has its own policies, I would first check the Y’s and your local community rec centers. You are viewing 1 out of 13 answers, click here to view all answers. Register or Login