The major problem with today's military is political correctness and poor retention/ poor recruitment. So it's a one size fits all nonsense where it's ok if you can't shoot.
Poor retention is by choice in some services. In many ways the military today does not want second enlistment folks. They want first enlistment warm bodies, and a few dedicated career NCO's. Today it is increasingly hard to reenlist for the first or second time unless you are well up on the scale of performance. They want either motivated E-4/5 or no E-4/5, the day of the career E-5 is gone. If you want to make E-7 you better have at least an associates degree.
Part of the issue is lack of ability at the NCO level to discipline soldiers under them. Back in the day if you were an E-1 to E-3 messing up your E-4 to E-7 had many options to "educate" or "counsel" you. At the end of the day when everyone else in the shop was leaving you might find yourself hanging around and finishing up tasks. If your Chief said you lost your civilian apparel privileges for a month you did. Today NCO's targeting specific juniors in such a way may face charges when the junior complains. I have seen it happen.
The options have become NJP or nothing, kind of like using a hammer to swat a fly. And today an NJP is a career ender. Back in the day you would find many E-7 to E-9 that had prior NJPs, shoot, in some rates it was a badge of honor and in the Goat Locker they may not want to share berthing with you if you were a goody two shoes and had never had a Mast. Today you won't make E-7 with a Mast / NJP / Article 15.
I hear these issues often, I have three kids in the Army, two are career and one will be getting out this year after her third enlistment. Further, our house was the watering hole (literally, our pool) for the kids in the neighborhood over the years, and several of them are enlisted or commissioned in various branches, the regulars who still stop by the house when on leave range from E-5 to O-4. We do a lot of setting around and shooting the bull over beer. And I work around and with active duty mil every day.
A story, this was 20+ years after I left active duty. Some years ago I walked into an Avionics shop in a hanger. An E-5 was sweeping the deck out in the hanger. Walking into the shop I see there is an E-3 with his feet up, reading a book. I turned around and went out to ask the E-5 why he was sweeping the deck while an E-3 was feet up, skylarking. I figured the E-3 must be on light duty or something. The E-5 said nope, the E-3 did not want to sweep the deck, and short of taking it up the chain and writing paper the E-5 had no way to make the E-3 do what was asked. It was easier for the E-5 to do the work himself than to do the paperwork required. I was, literally, shocked.
The US Navy is having a hard enough time making senior NCOs that they are expanding a program that takes civilian middle managers, puts them through a short training cycle, and brings them into the service as a Chief Petty Officer.
However, depending on your job, it is NOT OK if you can't shoot. I know soldiers and sailors who have been removed from certain status's or ratings because they failed weapons qualifications. If your MOS / Rate requires the qualification, and you are incapable, then you are not promotable, and if you are not promotable then you cannot reenlist.
T!