Are there any shops which use what I would call 'old' sizes.
I remember when a 10 was really small. When I was in my teens and a lot smaller than now, I was a 12 at most. I am now a 10.
My gran (on clearing out her wardrobe) was always a size 12-14 - on trying on some jackets from the 80s which were a 14 they were very tight.
Hardly any shops stocked 8s, and they were tiny. Now every shop stocks 6's, and they are not really that small. My local Asda stocks clothes in a 4.