Some of my contemporaries even quit high school before 1975, and then when it didn't come then, they had to go back and get their diploma or a GED to qualify for any kind of paying job.
Blondie, we saw that in this area too. Young guys quitting high school to go do a job requiring a lot of manual labor but paying (what seemed like) good money at the time. They figured they only had to do it for a little while since THE END was SO very, very near. As time went on they got old and the physical labor was killing them. Many were unable to keep up the physical pace required and found they had no other skills to earn a good living. Others hung on as long as they could until they could qualify for disability or finally early Social Security.
Those same ones were also marrying as teenagers, fearing they wouldn't get to have sex if they waited until the New World. No surprise that marrying young and dumb (tho full of ***) led to lots of problems and eventually lots of divorces, and if not divorces then decades of problem marriages.