To be fair, I know of several families who have daughters who are over 18, who live on their own (some more, some less), who are not Muslims, and who dress chastely of their own volition.
I guess it all depends on how well you raise them.
Bingo! That was my point. Look at how nmh would raise his. Almost guaranteed a rebel. Most likely would have piercings and tattoos to boot. I picture flames on the inside of her thighs just to make dad proud.