Jolene wears clothes all the time, she hides if she is not dressed. Forget about going outside nekkid...ain't gonna happen. She has never soiled them with her bodily functions, but has gotten them dirty from rolling in the grass when no one is watching
I just throw them in the wash on delicate cycle with baby detergent and hang them to dry. Altering the shirts for boys is a good idea...I've seen that done alot too.