Usually men are the victims of hair loss. That is not to say that women are not subjected to hair loss because they are. Women are just as susceptible but they may not lose their hair or go bald like men. They may just have thinning hair in certain places on their heads.
It is easier for them to cover their spots with either hair or add a weave to their hair. Men are more likely to be bald either based on their own voluntary actions to have their heads shaved or it naturally occurs over time.
Many older men do not voluntary have bald heads, but instead they go bald due to age and their hair becomes thin. It is more likely to see a bald man walking down the street than a woman.