When will you start teaching them about shaving? Will you wax their legs/arms/upper lip? What is an appropriate age?

I had hairy legs as a kid, and i remember at 10 years old i was so embarrassed when my friend was like, "omg, do you not shave your legs??" I was super self-conscious about my upper lip during those awkward years which included big glasses and braces, and was jealous of my west-indian friends whose moms took them to get everything waxed (at age 12).