The "enticement" is that the school tells them that they will not be funding them anymore....and this tidbit of news usually comes in year end meetings that take place in mid April, after all the FAFSA forms were due ...and not filed because the gymnast thought they still had a scholarship....so now said gymnast has no athletic funding and no financial aid because she didn't apply and this becomes the "enticement" to graduate early. ...and flippin out , you are correct in saying the affected gymnasts are given zero options in when/how/why they are replaced....the next shiny new gymnast who the college coach promises a scholarship to, and you see this with girls that "come a year early ", becomes the unspoken "reason" for the retirement to open up a roster/athletic money spot.
Scholarships were supposed to be "guaranteed 4 years" starting with the 2016 HS grads but language such as "violates a rule" , "quits the team " etc become license to treat the gymnast such that she "leaves the team voluntarily, thus giving up her scholarship" ....saw that happen more than 4 times on the same team even before the new regs, when they could just not renew....so with being on the hook for the 4 years so to speak, I can't even imagine what happens behind the scenes now when we see girls "retire", "graduate early" and just disappear from rosters.