We had our 10th cruise ealier this summer, and I usually skip the welcome aboard show (unless we are cruising with someone new).
My daughter dances, so even at age 10, we took her to the shows, her first cruise was on Conquest (an if they are still doing Formidable it was great). Some of the costumes were skimpy, but my kid was mainly watching the dancers footwork.
Now, she's 16, she still watches the dancers technique, but during The Big Easy (on the Triumph) she leaned over and asked me which french maid I liked the best.
I do remember hearing the CD announce during a welcome abord show, that some of the cosumes were a little skimpy, and for the passengers to keep that in mind.