Pubic depilation was happening in the bath houses in Ancient Greece and Ancient Rome, it’s nothing new.
I'm not sure that citing two societies that were deeply patriarchal and misogynistic really supports your contention that this is in any way a truly free choice.
Women were not citizens in Ancient Greece. Citizenship was only for men.
Women were controlled by men throughout their lives, subject to strict veiling rules, barely allowed to leave their homes, and very much treated as the property of men.
I am not sure why anyone would want to emulate anything about their lives tbh.