(It touches tangentially on the 3/4 forty year thread . . . . .)
Son went to an Ivy whose secret sauce includes strong bonding/network efforts including annual, on-campus, week long get togethers. This was his class' fifth year reunion. The only ones who didnt attend are still playing.
Eight played, one of those was a walk-on. Two were drafted (as srs), one a FA junior. That FA is bouncing between AAA and MLB; one draftee retired, the other is in AAA.
All eight graduated; most majors were economics, a couple of histories or political sci.
One graduated med school, one graduated law school, two are in investment banking, one is a USMC Captain (combat), one is a consultant for a multi-national (the draftee).
The ones who went pro were destined to go pro from day 1 and played summer ball; the others took internships. There was no pressure to do either.
If you are pro material, you will be found, signed and given a shot.