dating children is how you end up in prison.
enticing a minor child across state lines is how you end up in Federal Prison
then once you get out you end up a registered sex offender / child sex predator.
so unless you want to go to prison and get branded as a pedophile (possibly literally branded, inmates aren't too fond of child molesters and can get pretty creative) you should focus your attention towards individuals who are 18 years old or older.
restraining orders happen that way.
so do arrest warrants.
Second, given that you're only 17 years old, what makes you think you have the competency to comment on this subject (in a thread that's been dormant over a month)?
Third, what ridiculous reasoning makes you think that the child's parents "can't do anything unless they have a probable reason [whatever that means] to get a restraining order"? As a parent, I can assure you that parents can do lots of things short of obtaining a restraining order.