At least until COVID came along (and maybe after; COVID isn't going to last forever), the people who did that are magnificent examples of taking advantage of opportunity, what the "invisible hand" of the marketplace was doing, the benefits of military service, and most of all good timing.
For a while it was really fun to see the guys and girls who put all those things together to get into what can be a really fun job. NFOs weren't the only former mil people on that track, lots of non fliers were working their way up by doing the same thing.