Unfortunately for you, the first rule of Ihub administrating is: The more arbitrary the rule, the more tenaciously we will enforce it. This explains the minimum age limit, the one account per household rule, and extensive jail sentences for idiotic but unserious threats ("If this doesn't close at .0003, I will attack the Dali Lama with my blowgun!").
So rather than wasting your mid-teen years in this dump, go play football. Or the saxophone. Write for the yearbook. Go to your prom. If you still feel like wasting your money on crap stocks when you're 18, we'll see you then.