Never heard of it here... I think all kids who want to be married tell their parents who don't mind paying the expenses.

I got married when I was still a student, so did my brother.

Orfi as practiced in egypt also means unregistered marriage, I think all marriages in Qatar are registered, even when it's a married man who marries a second wife in secret (from his wife), it is registered and most of his male friends usually know about it.