Why are some older women ashamed of their age when they are super hot??

it's super easy to look good in your 20s. but when you see a 45+ yr old woman who is fit, toned, and resembles a 25 yr old....it's like a diamond in the rough. she is like the definition of a MILF. If this was me I'd be saying my age Loud and proud. I see some women are ashamed.....don't they know how rare and exceptional they are??? girl you better be proud!!!!