Why are Men's Pants Sizes Different From Women's?

Men's pants are sizes by waist and inseam, while women's sizes simply start at 0 or even 00. Why the difference? And who's the victim of vanity sizing?

What women size(s) is equivalent to men's size 36/38 pants and XL

How do women's pants sizes compare to men's? - Quora

How To Find A Pair Of Jeans That Fit Just Right

How do women's pants sizes compare to men's? - Quora

What is the difference between men's pants and women's pants? - Quora

What is the difference between men's pants and women's pants? - Quora

WOMEN'S JEANS SIZE TO MEN'S JEANS SIZE CONVERSION - AKINGS

Japanese vs. Western Clothing Sizes — Finding the Right Fit

Reebok men's and women's size chart