Fashion Photography in the past concentrated on sophistication or models who were sophisticated.
Todays fashion is baggy jeans, and sweatshirts. Put anyone in those clothes and they smell not of sophistication but of skateboards and the street. Gum chewing was at one time considered sophisticated, when people didnt have enough money for gum.
Todays bubble blowing bimbos and gum snapping sluts dont give that aura but are still used in fashion spreads, more often even than before.