I share your assessment, but I think unit cohesion is one of the reasons for our military forces’ level of professionalism, competence and integrity. Drafting idiots, malcontents and subversives could destroy our military cohesion.
That said, I think the military should increase the maximum age for volunteers for various mission specialties. In the increasingly technical military of today, there are plenty of mission specialties where a 40+ year old guy who is able to pass the entrance physical(s) should be allowed to volunteer and, as you say, relieve some of our people on the front lines.
Draftees are typically short term MOS designees; MP, Infantry, Artillery, Truck Driver etc. Nobody gets drafted into the Navy or Air Force, and we don’t turn draftees into linguists or other time consuming specialties.
Don't know if you've been watching what we've been doing lately, but your statement pretty much sums it up. Let me give you an anectodal scenraio, where I was in a liqour store and an Army recruiter walked in to assess potential recruits in line. Nothing wrong with that mind you, until I heard a guy state that he had two felonies to which the recruiter asked, "what were they for". I have active duty friends all over the world, not to mention an active duty spouse and I'm here to tell you things are rough out there.