I've never been in the military but my sister joined the Navy in 1979 when she was 22 in what I would characterize as a rebellious act against my dad and in an attempt to shake up her life. She signed up and came home and told my dad so there was no going back. She was pretty miserable in basic training (she was in Pensacola) but as I recall, I don't think it was an option for her to just say she'd had enough and just go back home. It sounds like basic training was definitely no walk in the park and even the toughest person might want to give up.
But now in her 50s, she still says being in the Navy was one of the most valuable experiences in her life. In fact, she was stationed in Adak, Alaska for about two years and she actually could see Russia from her house. Ha ha!
Anyway, my point is that it was not an option, in her own mind, to have a dishonorable discharge. Isn't a dishonorable discharge from the military a dishonor no one wants, especially when you leave the military and try to enter the private sector? Or is it not such an embarrassment anymore