Because the current style is for women to wear things in their hips, there is nothing wrong with this for women, but little girls do not have hips. If their shirts are not long enough then you have the plumber problem. I have a few problems with this.
First, little girls (and anyone for that matter) do not need to be showing the world any part of their backside. It may be funny or "cute" to see a little crack when she bends over, but really think about it. They are showing the world, or whoever is looking that way, their bottom. How would you feel if that was you exposing that area!
Secondly, it is immodest, and we need to be teaching them modesty even from a young age. I am currently trying to teach my daughter to sit properly, yes she mostly wears skirts, but I even remind her to sit like a lady in shorts. It is important to me ( and my husband desires it too) to raise ladies. We are slowing starting on proper etiquette, but as she ages we will become more in depth.
How do solve I solve this problem, when I see my daughter bend over in a pair of capris to pick a flower. Well, I am sad to say she will no longer be wearing this pants. I am trying to have her wear more skirts and dresses, because I believe that is more feminine, but I do allow for some capris. Here are some things i do:
~Elastic waistbands usually do not slip down, tend to stay at the natural waistline not allowing for immodesty.
~Longer shirts that cover just in case it does happen, these shirts usually have to cover the bottom while standing to give enough allowance when the child bends
~Skirts usually do not have this problem, and if they would there should be something under them that should provide coverage.
~Dresses eliminate the problem
If your daughters clothes do this I don't want to sound like I am judging you for it (this post came about because I saw it when my daughter bent over), but I am asking you to consider covering yours.
I have noticed the clothes that are less trendy and less "adult like" are more modest as well, not all the time, but most of the time. I try to dress my children like little kids rather then little women/men. We only have 18-20 years (roughly) where they are home with us, and that time goes by so fast! Let's keep them little as long as we can.
*** For their safety, I didn't want to include this part in the main part of the post, but I feel it needs to be said because while those other I feel are good enough reasons, this is my biggest concern. I want to handle this one delicately, pedophiles they are everywhere, grocery stores, malls, specialty stores, and even your neighborhood. Some have already been charged and convicted, while others have not found their victim yet. If you visually stimulate them by allowing your daughter to expose herself. I shudder to think what might happen while you look away for a second. I know that is a bit drastic to think this way, but the world we live in today is simply no longer safe. Children have been taken while riding their bikes, while walking home from school, while at public pools, while on vacations, unfortunately it could happen anywhere. You do not have to look very far to even find where things have happened in churches. I am sad to say I have been in a church where children were abused in this way. We need to protect them, and tech them how to protect themselves.