If we all insist on being morally right, then we would never be
able to progress. Then we all have couchpotatoes whining about that
everyday and night on internet forums. Besides, most clubs allow 18
year old entry and some even have underage parties and no one's
saying anything.
They also never force you go. Like games, you should know that
study are more important but yet its being released and advertised
even on TV.