When cocktail hour comes too soon....

I have spent the last several days looking for Easter dresses for my 6 daughters and I have to say that I am more than spent. I have been to soo many stores. I am not a strict, strict Mom as far as modesty goes with my little girls but I do want them to be covered tastefully. They do wear the occasional sundress especially before they are about 8. That being said though I have to say, do the above dresses look like dresses you would put your 7 year old in? I am all for a cute little sundress on a little girl but the above look more representative of slinky cocktail type dresses that I wouldn't really even want to let my teenager leave the house wearing. I mean really??? What is going on here? If you don't want your little girl showing most of her back and or chest etc than you have to buy the dress and then a little sweater that can actually cover them and that can get very pricey. I just don't know who is designing these dresses. I, for one, DO NOT want my 7-12 year old girl looking like a hussy at church or anywhere else! Why can't little girls just be that, LITTLE girls? Who decided that they need to be little 20 year olds? Why didn't I get that memo? I took the above pictures at the girls department in Sears today but it is no different at JC Penney, Kohls, Dillards, Nordstroms, Justice, Macy's. I know....I have been to EVERY store. And there is one dress style in particular that I am wondering what the heck is up with? I have seen it in just about every color combination over the last several years. IT is the EXACT same dress OVER and OVER again. What is with that? Are we out of designs? And if we are, why THIS style????