This is called legalism, petty picking of unimportant things that supposedly please God. They really don't please God, Jesus told us not to worry about what to wear. I was raised southern baptist, I went to a horrible private fundamentalist protestant Christian school when I was little, they had a strict dress code. No uniform, but the girls always had to wear a dress or skirt. My mom said one time it was cold and she dressed my sister with jeans under her dress and they sent her home. This is in Florida my Mom is very sensitive to cold, she thought it was cold, my sister being a very young child was dressed by our mom, I don't know any of this except what my Mom told me, I was a toddler or baby, my sister is older than me.