OKay I cruised with my 2 daughters last year, then 4 and 1. We will be cruising again in 2 months. In my opinion I thought it was a realy waste of time dressing them up in dresses etc just for dinner. By dessert my oldest was begging to go to Camp Carnival and I would have to drag her to change her into comfy clothes to play in. I think I am not going to dress up as much either except for the 2 formal nights because I would want to go to the show or the clubs and I preffered a tracksuit after dinner(so I could stay warm!) I think your are fine even with the jeans. like I said this is my opinion and experience. I know every one will not agree with me!