Chimamanda Ngozi Adichie said this quote
“ If we do something over and over again, it becomes normal. If we see the same thing over and over again, it becomes normal. If only boys are made class monitors, then at some point we will all think, even if unconsciously, that the class monitor has to be a boy. If we keep seeing only men as heads of corporations, it starts to seem 'natural' that only men should be heads of corporations. ”