Oh and also.....any rooms that are locked inside your home need to be secure. Our difficult child once broke into our room by removing the window AC unit because I didn't think to secure the window so it didn't open even more. Imagine that you live in a high crime area and secure accordingly. It hoovers but with a sticky fingered difficult child, it's a necessity.
And if it's not feasible to install a lock on your daughter's door, you may have to keep her precious items in your room or in a secure area.