For the very same reasons you point out, there is also a style shared by the servers who work at these coffee shops. We would expect young people from the same

For the very same reasons you point out, there is also a style shared by the servers who work at these coffee shops. We would expect young people from the same generation to adopt similar hairstyles, facial hair choices etc. When we look at 70s interiors full of leather upholstery, wood panels and with a desaturated look from old film camera pictures, they feel outdated. It's hard for me to imagine looking at these white, clean HD interiors and saying "oh this feels so outdated" - but I bet that's exactly what people will think decades from now.