Family affair / age Limit

Okay here is the situation, My niece got to see me run my second Tri up near Buffalo NY.
She thought it was the coolest thing and wants to train for the "Try a Tri" next year.
She is going into 9th grade in September.
Can she use the BT for logging, getting information, etc? Or does she have to be 18.
I have never seen any age restrictions, but I wanted to ask before I toldher about the site.

Thanks in advance
Verga