No, no it wasn't. Typing was for secretarial jobs, yes. But it was also for accounting, data entry, research, teaching, and yes, programming did exist back then too.
Almost nobody works for minimum wage these days. Even Walmart has a $14/hr minimum wage, almost twice the legal minimum. If you're "stuck" working a minimum wage job, you are either disabled in some way, or just aren't trying. For that matter, even employees at Kroger with special needs, who do things like rounding up carts and sacking groceries, make at least $13 an hour. The BLS says only 1.1% of workers in the US make minimum wage, and that includes teenage workers. https://www.bls.gov/opub/repor...
So no, don't give me that crap about people "these days" being expected to do horrible jobs for minimum wage. That is nothing more than a trope.