I had the good fortune to graduate from High School in 1956. As stated here, it was from a Vovational Program as a Machinist and Draftsman. Had several job offers and a apprenticeship offer as a jounmeyman machinist. This was an excellent background for my chosen field as an aircraft engine and airframe mechanic. Got the basics for that by serving in the U.S. Air Force for 5 years. I attended night classes during those years. Went to work for an airline after completing a Master Airframe and Engine course on my own dime. Then eventually went to a University ( again at night ) and eventually moved up in supervisoty and management positions. So, I didn't get a masters degree or Doctoate but still had a great working life!