Kids learn by example.
I used to wear pants and jeans and dress pants, but I was convicted that I should not wear pants. (Not from my church)
I got rid of all my pants and bought jean skirts of all kinds, except the ones with really high slits that Wal-Mart has.
I continued to wear skirts all the time, in hopes my daughters would follow suit.
They didn't see it as I did, so I set guidelines. They know that when ever we go to church they are required to be in a skirt or dress. Sunday mornings they are required to be in their good dress skirts and Sunday nights and Wednesdays they could wear their jean skirts or other skirts. I didn't allow arguing on this subject, that is the way it is as long as they are under my roof.
They still wear pants but now I see them dress more in the jean skirts even outside of church.
Pray about it. Maybe have one of the girls at church talk to your daughter casually.
The "D" in denium is not for Devil! But the "P" in pants stands for you need a diaper!