Quote from Lucrum:
Not necessarily, though I think I see you point.
Do we know if anyone has even tried? I mean simply "banning" something does not prevent people from getting their hands on it.
True, but it is a making it extremely hard to get one when it is a serious ban that has been in place for a long time.
Serious criminals do not have any intentions of bringing down the planes, psychos have no ways of obtaining rockets. Terrorists who might try to obtain them on black market, will most probably be sold out to government for some favors. The ban does work.