I would suggest there is a value in reviewing universality of service and how it's applied. It can, on occasion, be an impediment to people joining, and it can also cause people who were serving in the military and who have developed highly valuable skills and experience to have to leave the military.
The challenge for the military, going back to the navy, is what the navy refers to as sea-shore ratio. The more people you have in uniform who have limitations on the type of work they can do, the smaller the number of people in uniform who are having to spend more time away and do the deployments, the operations, etc. That's the struggle that the military has finding the right balance there.