My youngest daughter does this, too. She tries an outfit, doesn't like it, and throws her clothes in the laundry. We've trained her that worn clothes go in the laundry basket to be washed. But she struggles to understand that clothes that have been worn only a short time aren't dirty.
I've noticed that it's easier to teach database keywording to library users who have used card catalogs in the past because they already understand subject headings. They don't have to first unlearn Google searching.