First of all, wow! 144 answers in 3 hrs! Thats gotta be some kind of record! Anyways, rest assured, you are not old, nor are you being a "prude" or a 'fuddy-duddy". Every answer to your question is basically screaming the same thing-
1) Yes its wrong!
2) We agree that slutty clothing is disgusting on anyone under age 18!
3) We as consumers are disgusted and excessively annoyed by the fact that we cannot find modest clothing for reasonable prices for our daughters to wear!
Case in point: Residing in upper NY, Christmastime is obviously cold around here. I shopped at four, yes FOUR major retailers in my area (Wal-mart, Target, JC Penney's, and Gap) looking for a nice, modest dress for my 8 yo daughter to wear in her Christmas concert. Guess what I found? Mini skirts, tank tops and see through jackets! Seriously, I looked EVERYWHERE for something decent. I ended up buying a woman's mid-length skirt and had it altered by my aunt, and I bought a nice velvet long-sleeve shirt that I had to "dress up" a little with sequins! What is wrong with this picture?!
As parents, the only thing we can do is collectively demand that retailers start changing their clothing lines. If you can only purchase "Mary-Kate and Ashley" clothing at Wal-mart, then Wal-mart should be able to say, we want decently designed clothing with young childrens needs in mind. If Wal-mart threatened to pull the line because of the revealing attire, then the designers would surely adjust to meet the criteria. But, also as parents, we need to say, enough is enough! We must let those retailers and clothing designers know that we WILL NOT purchase ANY of their clothes if even some of their designs could be considered "too adult" or down-right "slutty".
If only one or two, or 144 voices shout all this, no one will listen. But if thousands and thousands shout, we can make a difference. Just because we are parents, it doesn't mean we are "past our prime". We can improve our daughters attitudes' towards clothing and dressing approprietly not only by laying down the rules and stressing how bad the consequences can be, but also by example. How can we expect the future generation to believe they can make a difference if they have no model to follow?
I guess this subject pokes needles at me, and obviously at other good parents out there, this has got to be the longest answer I've ever written!