A PhD psychologist I worked with years ago mentioned that it was common in Jewish families in the circles he had grown up in to have sons trained in a craft or trade in addition to their academic expectations. He himself had been trained as a jeweler before going on to university in psychology, and thought this had been all to the good. It had helped put him through graduate school. There had been a five-year stretch when he didn't want to be a psychologist, and he had worked as a jeweler most of the time, while keeping some part-time work in his academic field. Whenever he moved, he could usually secure at least some income from the craft, supporting himself while he established his practice.
The idea sounded wise, and attractive, but I never did that with any of my sons.
Recently a father at church who works in a medical field wondered if he should send his sons to a six-month or one-year training to be a medical technician that does sleep studies, or x-rays, or phlebotomy. They don't take that long, are solid respectable professions, and are unlikely to go obsolete in the near future. Also, they give a young man - presumably women as well - a different perspective than other students might have, providing some inoculation against the idiocies of college.
We have one more boy that we're bringing up now, one whose academic interests do not seem obvious at the moment, though they are likely to be in creative, verbal tasks. I wonder if we should consider such a strategy as well.