My dd is 12.
She has had her eyebrows subtly waxed at a salon for about 18 months as her thick and dark monobrow bothered her, and I remember taking a razor to mine at around the same age.
I taught her to shave her legs after she asked me what she could do about how hairy they were around 12 months ago.
I gave her hair removal options and she picked shaving.
She asked about make up in year 7, we spent a couple of hours in town getting a very lightly tinted moisturiser, concealer, clear mascara and a lip balm.
She has pocket money and goes to town and I didn't want her ending up with thick, wrong shade foundation etc.
I know lots of people might not find this, but dd hasn't shaved her legs in maybe 3 months, isn't on at me the second an eyebrow hair is out of place, and rarely bothers with anything more than lip balm and that's only if she has sore lips.
I haven't turned her into some sort of mini beauty queen that's older than her years, but she does know that I will compromise with her and help.
I was/am very dark haired, and remember the misery only too well.