Girl shall go nursery school ?

One of the my teacher say is unfair for guy to go army and waste 2 years. So she suggested to let the girl go nursery school. Do you agree?

To me, I disagree. It is because guy go army is to protect the country but  what the point of letting girl go nursery school? I think it  is a waste of time for the girls.

In addition, as she say  is unfair. I was wonder, girls have to feel and accept the pain every months for the whole life. Than is it fair for us?  If the guy can also feel the pain than I will agree that girls shall go nursery school or event enter army.

This is my point of view. What your?