I'd say not do the tux, although they do look really sharp, but a suit usually looks good too... I'd say yes for a suit on Formal Nights, and then on the non formals, I'd say just nice pants, nice shirt etc... But a Suit is fine then too.
As for changing, when I went on my last they didn't have the Teen Clubs, but I'd say it'd be a bit of both... I'm going to change probably because my dresses aren't exactly the most comfortable for chilling... Now if he's in the nice pants/nice shirts, he may not need to change and he should be fine as long as he's not uncomfortable!!!
Hope I helped!
First Cruise: Carnival Pride
Next Cruise: Carnival Glory 3/31/07
well it depends, some of the guys i met wore a tux/suit, and others just worse dress pants and a button up shirt and a tie..so it depends.
and after dinner, if there was a show in the theatre me and my friends would all go straight there and not change..but after the show we all went to our rooms changed into more comfortable clothes and then met up again
none at the moment =[
-Ocean Coral & Turquesa Resort; August 2009
-Mariner of the Seas; August 2008
-Explorer of the Seas; July 2007
-Crown Princess; July 2006
-Voyager of the Seas - July 2005
-Disney Wonder - November 2001
-Big Red Boat..not sure when
my brother wore a tux. but he's only 12. and everyone changes out of formal wear after dinner. or at least on my cruise. i'm not sure if guys wore tux's. we were the first table in the dining room. and i was in and out as soon dinner was done so i didnt pay much attention.
I would go for the suit, thats the standard dress I have seen for teens on my cruises.
If you have early seating dinner, your show will be after dinner. If I have early seating, I usually stay in my formal clothes for the show, then afterwards I change and head to the disco or any other activites I want to take part in.
Disney Magic- August 02
Carnival Pride- July 05
Monarch of the Seas- April 06
X Infinity- June 01'-Alaska
X Galaxy-July 02'- E. Caribbean
X Millennium-July 03'-Mediterranean
Empress of the Seas- June 04'-Bermuda
Enchantment of the Seas- August 05'- New England
Rhapsody of the Seas- July 06'-W. Caribbean
HAL Noordam- March 07'- S. Caribbean
Empress of the Seas- July 07'- Bermuda
NCL Pride of America July 08'- Hawaii (CANCELED :[)
Explorer of the Seas July 08'- New England