That's not entirely true. Maybe in some cases, but not all.
Most women wear makeup because it's simply fun to do. It's artistic at times.
There are women who have cronic skin conditions such as cystic acne. There are women who choose to wear makeup to cover burn scars, vitiligo, domestic abuse scars, all kinds of physical scars, birth defects, even tattoos, etc. Some women even choose to cover up moles, freckles, and birthmarks (this is commom in East Asian cultures). Not every woman will cover up, but some do.
OP, I hope this answers your question. Anyone else is free to add on to this and discuss if they want.
who said anything about needing it lol they WANT to wear it
Some girls think of makeup as art, a way to express themselves, look pretty, show their talent and/ or to boost their confidence...
O͡͡͡╮༼ ◔ _ ◔ ༽╭o͡͡͡
Everyone wants to look beautiful