I frequent military forums and issues like this are still handled the same as what I saw at Fort Benning sixteen years ago. Most who want to quit, notwithstanding a legitimate medical or psychological issue, are kept with their training company for months.
Sit there and watch everybody get trained up but not get trained themselves. Watch their peers graduate and celebrate with their families. Then, get shoved into a new training company for a couple of weeks so they can share their horror stories with the new recruits.
The easiest way out is to graduate, and hearing it first-hand from morose privates is more effective than from drill sergeants.