Because men 18-35 had to serve for 3yrs, later 17-50, and if he couldn't afford it, he would have to hire a substitute to serve for him.
That answer is no where near being close. In the late 1800's the were starting to be able to go to public schools even though they still had to work in factories.
It's Virginia. Your welcome
7 years. from 60 bc to 53 bc