Oh....it's not just the pine-riders on partials. It's any kid that does not want to deal with the demands set forth by the coaches, trainers, and professors. As a matter of fact, it's the girls on partials that are trying to prove they are game worthy and are trying to get their scholarship increased. Walk-on's bust their tail just as hard or harder to prove they're team worthy.
All players who are not in the starting rotation should be busting their butts to get there....some are willing to put in the effort and some decide to hang up their cleats.
I mentioned the partial scholarships because I know a lot of players who are signing for very little to no money, and when you add up the hours spent on softball vs. working a job, even at minimum wage, most girls would be financially better off working a job. College softball can be a lot of fun, but it is also a lot of hard work and it take a special desire to do it for 4 years while a lot of your college classmates are in a sorority having fun.