Good to hear, David!
I always think of Tom Selleck when we talk about shaving our heads. Tom Selleck is a great looking guy, but I cannot get used to him not having a mustache. I'm just so used to the mustache.
Probably my kids think he looks fine, because they aren't used to the mustache.
People are just most comfortable with whatever they're used to, in most cases. I'm glad your sister has an open mind!