The freedom to smoke, drink and to stay out late in some cities is restricted. Young dudes can't enter sacred alcohol shrines to see bands or watch certain movies because the federal censor's grandmother might be offended. Nor can they attain full driving licences, get credit, rent a house or choose what they want to learn. There's also lots of laws governing a young person's sexuality. A great deal of AIDS education and the 'scary' side of sex seems to be directed right slap-bang at the youth.
Sex is pretty scary stuff at that age to begin with, scare campaigns just stuff it up totally.
Teenagers are a disenfranchised group and politicians really only worry about their parents and not them. When the pollies salivate at the thought of power every four years come election time, the youth become an agenda item but nothing ever really changes. In my experience most fifteen and sixteen year old's would make great voters and possess open minds to make real changes, although perhaps not through rigged parliamentary so-called democracy. Maybe that's why they're not allowed to vote. I guess this is also why youth wages are the lowest wages going.