As the designated drinker in our family, I must reply.
Everywhere you turn on the Disney Magic, there seems to be either a bar, a server, a display or a sign that promotes all of the above, and the drink of the day. I will also attest that the drinks are quite expensive. I suspect that Disney makes a lot of money from selling those drinks! (man, don't I know it!!!)
But I too can say that I have never seen anyone falling down drunk, or acting crazy like Spring Break on MTV. That's not to say it doesn't happen-- I have just never seen it on The Magic. Maybe that's what really goes on inside those category 1 and 2 suites???
DCL doesn't stand for the Drunken Cruise Line. That would be Carnival. Those people can throw down some booze and smoke like stoves. That's not to say ALL Carnival cruisers do that-- just in case anyone here takes exception.
DCL also prints the year of birth of the passenger on their Key to the World Card. Those not of legal drinking age get an NA on their card (no alcohol). I would feel extremely comfortable with high school or college age kids on the cruise-- knowing they wouldn't get served. I can't say the same about other cruise lines.
But I would warn you-- if you don't want to expose your children to the party animals, don't take the kids into the bars in Key West or Cozumel! They might be exposed to the likes of me.
For the comfort and safety of my fellow passengers (and my wife and I) I ALWAYS confine myself to the Quiet Cove Pool and SIGNALS bar area whenever I do my serious drinking. And I haven't fallen down yet. I have occasionally acted crazy, but that doesn't take alcohol.
Jerry