Why are the women in Pilates classes so pretty?

Regardless of nationality or age, women who come to Pilates classes are always dressed appropriately and have beautiful figures! I have seen many beautiful young girls who can even be models and actors They are so exquisite that their hair strands are fine! SO Why?(I'm The fattest and The ugliest😭 #PilatesGirl #BeautyTalk #PilatesFail