Any Dec 19th Wonder Cruisers bringing late teen,early 20's kids?

[golfknut]

Our late teen and early 20's daughters are leary of taking a disney cruise. They are concerned about the activities/entertainment being geared toward younger children etc. To tell you the truth, my wife and I took a 3-day Wonder cruise last fall but really didn't notice what was available for late teenagers to do. Are they allowed in the adult piano bar, game show etc. areas? Are there any planned activities for that age? My wife is worred that they will get bored but I told her that I didn't think other cruise lines offered any additional activities for this age. Other lines have casinos but our 21 year old wouldn't care for that anyway. Anybody out there cruising with their late teen or early 20's children on the Dec. 19th Wonder?