It's been a year since my husband gained full custody of his daughter (13 years old), and yet she still can't seem to pick up after herself without being asked to do so! She has her own bathroom, not in her bedroom, but it's across the hall from her bedroom. It has been a pet peeve of mine since we got her, that after she takes a bath, she doesn't drain the water until she is asked to even if it's days later. She leaves her clothes all over her bathroom floor and counters.