@jeffowski @guncelawits Well, I can only speak for the western world, and mainly in-person shopping. It seems to bother men a lot less to order smaller sizes online, and GAP has always offered even XS, which is even to small for me.
I first became aware of this when "Marlboro" (yes, like the cigs) opened a menswear store and my bf (average size guy) was unable to buy anything there because they "didn't do small sizes".
Here is a typical example from Lidl: https://www.lidl.co.uk/p/livergy-men-s-hoodie/p10011275