Repeatedly, it has been illustrated that women are the weaker sex. This philosophy begins to form one reason as to why many support gender discrimination. Women are simply physically and biologically weaker to men. As for sport, they should not be placed in an environment in which they do not fit naturally. Many view women in sport as looking silly and not a serious competition.
Men are physically able to compete at higher levels and it is natural.
Another perception is that women do not hold a competitive and mental attitude to compete at high levels of sport. Society again tells us that a competitive woman is unfeminine. Men are naturally competitive, physically and mentally. It has been in the past 30 years that societal images and roles have begun to be broken. We have lived centuries constantly reinforcing gender discrimination.