Are you under 18 or are the parent of a driver under age 18?
No, I'm not under 18, but I know someone who is.
I wanted to know if someone under 18 have any kind of restriction when to drive if is just a moped bike?
Yes, the rules for passengers applies too.
That's something that even applies when this person has a learner permit?
Yes, of course. There must always be a supervising driver, who must exercise general supervision all the time while the motorcycle is operated.
But this person can drive to everywhere right?
No, not really. With a learner permit you can not drive on any street within a park in new york city or any bridge or tunnel.
And once this person be over 18?