The Vietnam era was a scary time for people our age(60-70)....don't remember what my number was, but here's my story.
In 1967 I had been teaching mathematics for a year with a teaching deferment, and wanted to work on a Masters degree and PhD. I applied to a bunch of schools for a teaching fellowship where you teach undergraduates while attending classes. The University of Montana offered one to me. Before accepting I called my Ohio draft board and they said that when I changed from teacher to student they would call me for a physical.
Not being a risk-taker I declined the fellowship and finished a Masters degree at The Ohio State University, and missed the hunting and fishing opportunities in Montana.
We all have regrets.........I regret that decision, wound up teaching for 40 years, didn't get a PhD, and still trying to shoot my first elk. ( skunked in Colorado 3 times)
Those degrees are over rated anyways.................
BS = bull s***
MS = more of the same
PhD = piled higher and deeper
Dave