Two reasons:
- It is plastic. It will degrade into microplastics and will end up… in places where it shouldn’t. Water (from cleaning), inside of humans (and other animals) due to drinking water, breathing, etc.
- They are much harder to clean and keep hygienic. They get smelly much faster. They smell worse within a workout and they are hard to clean between workouts.
God damn, another lemmy server with a stupid name. s.h.i.t.j.u.st.wor.ks