Why do other people think it’s ok to point people’s flaws out??

I’ve had this done to me numerous times by others,mainly 2 scf.

“Ooo you’ve got grey hair coming through the roots”…..I know as it’s my hair and I have mirrors in my home

“Oooo you’ve got a spot”……I know as it’s my face and I have mirrors in my home

“Oooo I can see wrinkles…..I know it’s my face I’m in my 40s and I have mirrors in my home

I mean I notice things on other people but don’t point it out because it’s rude and Im not that person and as like me they’ll know themselves…