I don't think many people were taught to use planes or saws to dimension. If they were, nobody remembered much to give very good advice about it (other than the odd use here or there where something doesn't fit on power tools).
I have no idea why I keep saying that I work wood mostly or entirely by hand for pleasure, and the comparison of "I don't know anyone making a living that way" comes up. I don't, either. I don't actually personally know anyone who is making a living woodworking - period. I do know a couple of folks who have spent their wife's money setting up a semi-commercial operation that failed.
What I know here is trade cabinet setters, etc, who are specialty carpenters and who install things made in factories. This is what I referred to as the "tycoon woodworker" mentality because it seems like the 70s and 80s convinced some folks they could make furniture for a living, and it doesn't look to have flown. There are hundreds of nice shops in this city, I'd bet, and very few that produce any income.
I mentioned one joiner - I never met the guy, but a house in my neighborhood has a couple in it who had a small room and they wanted some kind of custom solution to have a lift up bed that wasn't exactly a murphy bed and some woodworking to tie it in. They did it as part of a renovation, so they probably rolled it into a loan, and maybe that guy got paid well. My wife badgered me to go look at the work. It was very plain, but neatly done. I didn't really need to see it.
If you're following what I'm saying, the hobby woodworker who thinks they're net close to making money because of their power tool setup vs. something I have is errant in two ways:
1) they would be trying to beat better men before them (but it's nice to dream)
2) I don't care - recreation has nothing to do with running a business. I want to work by hand. Your generation isn't able to make it productive - not enough is remembered about using planes for more than fitting and surface finishing
If it's considered dumb to hand saw or hand plane wood from rough, I don't really care. It's definitely not common here even in hobby, though there are often people who say they want to do it. In order for it even to make sense at a hobby level, you have to be good at it. Anyone who thinks a metal plane results in more volume worked in the same context isn't very good at it.
Once in a while, I'll say that I doubt there are many people on here who know as much about how planes function as I do. That's still true. And, I'm not talking about krenov planes and hollows and rounds. I'm talking about what you learn when you try to make good planes that you'd use above anything else you can find (I have made moulding planes, too, though, but they sit on a shelf because there's something I like about the look of the old ones). The bench planes, I go back and forth between mine and 1800s English planes (Except smoothing is almost exclusively a stanley 4).
I'm not engaging anyone in a discussion of steel and tie-in to what's actually in it, and what lasts and what maintenance is like - it all ties in with the tools, and someone told me early on that if I learned to use planes well, I'd probably not find any decent iron that I could play out before it played me out. That turns out to be true. I've made irons in at least half a dozen steels (including what's probably V11) and tested plane irons with actual measured use tests. V11/XHP lasts about twice as long as O1. But how it works in the context of a significant amount of work in different plane designs negates any real benefit from it. If someone takes four or seven minutes to sharpen and uses a guide, and they plane wood that's come out of a thickness planing machine and then sand it, it might offer them something.
My comment about old steel vs. V11 is basically a butcher iron (on the harder side for butcher) vs. V11 in two different planes. The design of the metal plane made it so that an iron (which would last far longer planing smoother shavings) didn't last longer dimensioning beech billets to make planes, and it was more physical work to wear out the plane and plane iron that didn't get as much done.
I'm not aware of any updated chisel steel that is better than more plain steels for chisels, either, and there's little that I haven't come across.
I have no questions about how you do your work or why, nor do I assume that any of it doesn't make sense in your context - you likely wouldn't be doing it here in the states at all unless you were really creative at wooing wealthy older ladies. I sure wouldn't try it at all either way here (by hand or with power tools), but I'd bet an enterprising guy could get near 6 figures hanging cabinets if he got the right client list. He just woudldn't be making them and wouldn't even be making the trim - just installing it.