If the Romney and Sununu boys won’t volunteer this is what you get. The problem will be solved by resuming the draft.
Personally, I like the requirement for some sort of national service obligation. However, first you need a plan to gainfully employ all those draftees and then you need to fund it.
Even during the worst part of the.Cold War when the armed forces were much larger than now, the actual percentage of draft age men who were called up was small in comparison to the total numbers in their respective age groups. There wasn’t enough force structure to absorb all of them. So there were plenty of deferments and exemptions. College? Yes. Family bread winner? Yes. Farmer? Sure. Critical industry? Yep. Criminal? No thanks. Homosexual? The door is over there. Physically unfit to serve? Gee, what a shame. And, of course, there were a lot of men who just sweated it out year by year hoping their number would not be called up until they passed out of the prime eligibility zone.
As for me, I registered for the draft on my 18th birthday, enlisted in the Marine Corps the same day, shipped out for boot camp a week later and received my draft notice about midway through boot camp. So I was more or less destined to serve.