This is a very good advice. There are huge drawbacks (mostly because of physical strain, and we are talking about a change in OP's 40-s, 50-s) but the mix of pr

This is a very good advice. There are huge drawbacks (mostly because of physical strain, and we are talking about a change in OP's 40-s, 50-s) but the mix of predictability, job security and unexpected things popping up is nice. I would go that way if there was a trade with less physical constraints that electricians for instance (I never looked in details, there are probably many such jobs)