Side issue: why don't more college golf coaches redshirt these types of kids? If I was a college golf coach, I'd redshirt 3s with talent instead of gIving overcoached scratch kids 4 years...
Money? I know from talking to friends who have kids at Big 10 programs that money, oddly (or perhaps not?), is tight for non-revenue sports, and I assume carrying a kid for 5 years, with four for eligibility, costs more than some kid using his four years right away. Football and basketball can afford to maybe carry a kid for five years, but not the non-revenue sports. That's one guess.
The other I'd bet is that alot of these kids -- fed the line by parents, youth coaches, and that whole sham -- believe they can and ought to be playing right away, thinking the transition from high school to college isn't that big a deal. And it's huge, even at the mid-major D1 level.
Bo Ryan just got himself into a mess by putting restrictions on one of his redshirt freshman who didn't get much time this year (mainly, from what I hear, because he's more interested in offense than defense, a basic sin in Bo's world). The restriction issue aside, the kid seeking the transfer seems to be a pretty good case study for a somewhat big-time HS player (Mr. Iowa basketball in 2011) not making the transition very well to college, and simply wanting more court time. He'll get it, but probably at a mid-major like Northern Iowa or Creighton. Which is fine. But it's symptomatic of the problem faced by coaches -- ALL these kids, even in the non-revenue sports, think they have what it takes to play right away, so when coaches start throwing around the idea of red-shirting, my sense is they starting talking about taking their talents elsewhere.
(The Bears offensive tackle from Wisconsin, Gabe Carimi, is a really good example of how well a redshirt can work in football. I know his story pretty well, as he went to our -- my kids' -- high school. He was 6-7, 265 lbs as a senior, and a consensus all-state pick on both sides of the line. Not an ounce of fat on him, big frame, smart kid, coachable, weight room nut. But he also played against lots of D2 and D3 schools here, which are smaller high schools. Wisconsin got him, put him on a red-shirt, fed him steaks for 12 months, and a year later he grew an inch and weighed 305. Started every game from his freshman year on, and won the Outland his senior year. 1st round draft pick. One of the things the Wisconsin coaches liked about him is that he took part in track in high school -- shot and discus -- and demonstrated lots of agility other than just blocking people.)