Hello, Evode! We'd be very happy to help! Individuals can join PF starting at the age of 13 with a parent/legal guardian’s permission; they must be present with you during the sign-up process. Members aged 13 and 14 must be accompanied by a parent or guardian when they work out. Members who are 15 to 17 years old must have a signed waiver from a parent or guardian on file. Please note that any PF Black Card® guests must be 18 years old with a valid ID, unless they’re accompanied by a parent or guardian.
I've seen kids in there teens at a number of planet fitness locations in the past. Your best bet would be to call and ask.
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