At what point in history did women start shaving? Why is this held in high regard still to this day?

Personally I love the hairless, smooth, silky skin of a woman but I don’t care so much if she decides to not shave her legs, privates and or underarms or even wax a lip or two. Makes no diff to me. I know I could look this up but I want to open this up for debate and conversation among us here in jelly land. Why do you think it is such a big deal to keep hair free?