To think this is bad. H and m sizing

[Footloose80]

Out shopping looking for a gift. Saw a top. Their sizing ranged for xs to xl. Person is size 10. Asked assistant what size is a 10 and told medium. So,a size 12 is clearly a large and 14 xl.
I know vanity sizing and all that but this person is at the bottom end of normal weight. How can that be medium?

So quoting Twiggy’s (UK) size 8 and using Mindy’s (USA) size 8as a ‘vanity sizing’ comparison is bollocks. A USA 8 is a current UK 12. So that timeline is comparing apples with oranges