I was drafted in 1953 and took the USAF option. Everybody was motivated because if you failed basic, you went right into the Army and Korea was still iffy.
We had 2 guys drop out. One had an epileptic seizure - the only thing I ever saw panic the DI. The unfortunate man was taken to the hospital and returned just long enough to get his stuff. The other dropout was a capable, married, 19 year old from Montana, He was raised on a ranch and never learned to read and write. Wasn’t too swift on math either. Not sure if they educated him or just sent him home. But, he was gone as soon as we started classes.
From the posts above I gather that it is a different world today.