That's a tough decision for many people. It's not considered proper in middle-America. They will loathe you. A woman I graduated from college with told me plastic surgery was vulgar, that lines were a sign of character, that it's beautiful to age. I said bull.
Character is internal.
I think they mean sexually invisible, but if they send out the right vibes, they won't be. If you don't flirt, then you're not alive. I know many women in their 50s who are not attractive, but they've got a joie de vivre. They've got bounce, they've got vitality. That's what attracts men.