“So after someone tries them on and sends them back? Well let’s hope they shower regularly.”
My 1st thought also but it’s the same if you in a store and try on clothes, how many people tried on the garment before you did?
IMO it’s not just the size but shopping in a store also allows one to check the fabric, basic construction of the garment and exact shade. No way could I buy a pair of tennis shoes - or any shoes - for anyone in our family on-line. Last time I bought a pair of tennies, tried on about 20 different ones before I found a pair whose construction and fit was acceptable and other family members often try on more than that. Shopping for bras and swimsuits for female members of our family is often an all day outing.
Seems to me like fit is not as important to the 20-30 somethings as it was when my generation was that age. Our clothing was generally all cotton or wool, did not stretch and lasted for years. Don’t recall anything being sized Small, Medium or Large until about 20 years ago.
I would think it would be a safe assumption to make that all clothing for sale has probably been tried on by someone else at some time.