To what end?
Many people view “looks” with a strong filter of personality. So being active, funny, nice, kind, etc. would actually, really, make you look more attractive to people.
Dress well, stay clean, get fit, improve yourself as much as possible. But do these things to make yourself a better person, not with an ulterior motive.
They could have saved even more by not putting batteries in them, or motors… Man, these things coulda had a way bigger profit margin!