Starting from work with high personal contact and trust (waiting, teaching) which cannot be outsourced, you want to move to work that is highly-technical, highly-ageist, first in line for disruption, with high barriers to entry, and highly-competitive (where you can compete with programmers world-wide for a job)?
That's a recipe for soul-crushing long-term unemployment.
TBH journeyman computer work today is plumbing with tools that go stale fast, or perhaps making tools to do the same thing better with less.
By contrast, medicine is now the biggest employer, largely because it's difficult to automate that kind of personal touch, and b/c in the US the population is aging. While being a provider involves training & certification, there are a number of provider-adjacent jobs in logistics and related counseling (e.g., genetic counselors, IT) where you can use your people and explaining skills. All of medicine now is highly technical, so there's plenty to learn, and that knowledge is much more interesting and relevant than CS or programming.
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