Ending the Selective Service System is certainly an option. It's unlikely the US will need a mass draft any time soon, and if it did need to draft young people

Ending the Selective Service System is certainly an option. It's unlikely the US will need a mass draft any time soon, and if it did need to draft young people (or just men) in large numbers, it wouldn't be all that difficult to assemble lists of them through other records. Just use high-school records, or drivers licenses or census lists.