My DW does most of the clothes shopping for both of us.
She gets great deals, but lately it’s been hit or miss getting clothes for me that fit. The variation between manufacturers is so great that she ends up taking half the stuff back.
I have broad shoulders, but have some shirts labelled “M” that fit fine. Most are “L”, but I have some that have to be “XL” to fit.
Likewise with pants. I’m wearing some 34s, some 36s, and even a few 38s. Inseams are no better.
It’s such a PITA. Sizes have become meaningless.
I don’t really care what size I wear - I just want it to be consistent when I get something off the rack.
I think whatever manufacturer would produce accurate (non-fuding) sizes for men AND women would be a billionaire.
Do most people LIKE the realization that they are “X” size? No, but it would give people back hours of frustration and time wasted trying on clothes of different sizes to find good fits.