Is it OK if I just sit back and laugh.

Most of the time they dont have the balls (and he lost his) to admit there is a problem.
He cant say he was not warned.
OK here are the RISKS you where warned about. Yes you are to young. Your body is not going to react the same as someone who is older and body has stopped growing and hormones are settled down.
You may experience problems for YEARS or for the rest of your life. Was it, is it worth it? Good luck