I don’t see the point in doing men’s vs women’s clothing sizes. Surely there’s a big enough variance in size and shape between individuals that it would be more useful to size based off of measurements of body shape?
Take shoes for example. Why is a uk men’s size 10 so wildly different from a UK women’s size 10?
All it seems to achieve is making shopping for clothes difficult for anyone that doesn’t fit into the expected body shape for their gender and make it hard to find well fitting clothes outside of specialist shops.
Resisting the urge to downvoted because this is a great question for this sub.
A lot of it is historical and never changed for 100+ years. Same reason buttons are on opposite sides on men and women garments.
Why do you have the urge to down vote?