Earlier quoted context omitted.
The US has a volunteer army, if you don't want to do army things why be there in the first place?
Volunteer, but only on the way in. And new recruits are very young. Things in thier lives change. They grow up a bit and often want out, but cant get out. Being stuck in a multi-year term of service doesnt feel like a volunteer army to them.
easy to volunteer when you're a hoodrat or hillbilly and it's the only way out of your situation.
but that's just the way in. Problem is you're on the hook for 4+ years and you can't just quit. I've definitely had white collar jobs I got to, realized it was fuckin miserable, and noped out in you end up in a shitty unit with a shitty boss, you get to eat shit for ~4 years, and will go to jail if you fuckup or disappear.
put another way, there is some statistic like 25% of military recruits who get kicked out get kicked out in the first year; it wasn't what they thought it'd be