As for fashion, trillions of dollars are made every year from it, so that's why cheap quality clothing of all styles are mass-produced. When the world begins to value quality and craftsmanship again, everything will be better. Fortunately there are a lot of stores that sell items like this, you just have to know where to look. Evidently a lot of good clothes can be found on places like Etsy.
I personally like how there are many different styles of clothes, because clothes reflect the personality. As we enter the Age of Aquarius this will remain, but hopefully be better quality and not made by child slaves in China.
It's not impossible, people just have to spend the time exercising and avoiding heavily processed junk food.