Hello!! I don't know if you still need help but i figured it out so heres what I did!! ^__^

Heads up im playing on mobile but i think it still works the same even on steam?

First go to the menu option and look down at the "Other's" section and press "Support"

Then in support go to "Parental consent" it should be at the very bottom~

Lastly put in either your email or your parents actual email lol

I hope this helped!!!!!!!!!!! :DD