It is said on the internet that bangs should be washed for three days after styling. The barber said why not?

It takes a few days for hair to soften when styling, and it needs to be completely restored to the state before softening. It is reasonable to soften hair for three days before washing, but sometimes it depends on the situation. If you want to be natural, you don't have to wait three days to wash your hair. After washing, it's best to blow your hair to the desired effect, or at least dry it.