It depends on the gym, but a lot of gyms will let you join if you are about 12 (with a parent's permission). Fitness 19, for example, lets you join at age 12. So at 13, you should be able to find a gym that will let you join.
you could join a swimming club
Yes you can mostly start at any age
any
they could join the stripes volunteer or they can do volunteen
Of course! You could probably find a competitive cheer gym that has a junior level for you.
You have to be 18 years old to join Gold's Gym. Some locations allow minors if they are accompanied by an adult.
No, 17 year old cannot join WWE because its a criteria of WWE.
Yes, she certainly could. In the US, the age of 18 has always been able to join the military without parental approval. A 17 year old requires parental consent.
yess why not
Depends where -at home yes, at a gym no. But, be warned as it could stunt their growth.
In the United States you must be 18 to join the military. A 17 year old can join with parental permission.