RE: Should we have compulsory service (e.g., military draft) for all young people in U.S.?

One benefit of compulsory service is that a broader segment of society would share a common experience–something that may have benefited the WWII generation. And more people might be engaged in politics and foreign policy if they have a stake. But the costs in terms of foregone activities–work, school, and other things–would probably exceed any benefits.