Because they don't want the following:
Strung Out Kids
Having to Post Bail.
Get The Point?
I'm 16 and see why, why so blind OP?
It's their job - and a labor of love - to teach you that fun is great but responsibility comes first. If you're luck you'll learn that before you're on your own, when not learning it would mean not having food or shelter.
because they want whats best for you
Coz if you screw up, they end up on the news
cuz they are older, lived longer and know way more than you do