I have never been on Celebrity but I have been on another "upscale" line (in the same "premium" segment of hte market), where most of the young people seem to conform to the published dress code on formal nights. Celebrity also has a reputation for being pretty dressy -- perhaps even dressier than some of the other "premium" lines.
For formal nihgts, the older two girls certainly could wear their prom dresses. The thirteen-year-old probably could wear a nice dress on those occasions.
The semiformal nights undoubtedly are a bit less formal, but they probably are still quite dressy on most Celebrity Cruises. Nice dresses certainly would be appropriate. Dressy blouses and skirts probably would be another option.
You probably will receive an information package from Celebrity Cruises, eihter right after you make your final payment or when you pick up your tickets. Be sure to read the information thoroughly. The information package probably does contain dress guidelines to which your daughters should adhere.
Have taken my granddaughter on cruises since she was 8 and although she has nott reached teen, she loves formal nites. Says she feels like Cinderella. She has always worn a nice long dress for formal nites. I made the first few and now we just buy them when they are on sale after proms and New Years.
The older girls will be perfectly at home with a prom dress or long skirt and nice dressy top. I'm sure they too will love dressing up.
Have a great cruise and let us know when you return how you liked it.
As Pamda said, formal nights are for EVERYBODY, so teens are not exempt -- and, if the truth be told, it's a fantastic learning experience for them. Your son should follow the "suggested" dress in the information provided by the cruise line.
I'm not sure how formal things get, or don't get, on Carnival, but I can tell you that a blazer or sport coat is not proper attire for a formal occasion. If Carnival does have true formal nights and your son does not own formalwear, there are a couple options.
>> 1. Most local tuxedo shops offer some sort of a "cruise special" rental of jacket, pants, two shirts, a cummerbund with matching tie, a vest with matching tie, studs and cuff links, and shoes for about ten days for about $85. The advantage of renting at home is that you can be sure of correct sizes.
>> 2. Most cruise lines now offer onboard rentals. If you submit your son's sizes and selections in advance, they will deliver the tuxedo to his cabin on embarkation day for his use during the cruise, and he'll just leave it there when he vacates the cabin. The onboard rental might be a bit more expensive than the "cruise special" at home, but it saves the hassle of picking up, packing, and returning the outfit.
You probably can make this a lot more palatable for your son by allowing him to choose whatever style of formalwear he likes. A white dinner jacket outfit, for example, is quite proper on formal evenings anywhere in the tropics (Caribbean, Mexican Riviera, etc.) as well as anywhere in the summertime. Of course, a tuxedo is equally acceptable.