I think locality is the difference. Electricians and Plumbers are needed basically everywhere. Conversely, there’s not much of a local market for bespoke software development in random towns in the US. While, yes, there are various contractors with statewide coverage, Joe-with-a-pickup-truck who treats the neighbors right in town still wins out many times.
But you need to realize that both professions aren’t valued the same everywhere.
In my childhood in the Soviet Union “plumber” was what parents scared their kids with “if you don’t study, you’ll become a plumber”. And that profession was extremely undesirable and didn’t pay well.
Also in many SEA countries both professions aren’t paid well.
I think in North America it’s different because it’s highly regulated and barrier for entry is high.
I think a lot of people in America talk about plumbers as this sort of “aspirational blue-collar job” because they forget how dirty it is. Like, the usual boomer framing is to talk about how you know a guy who makes $100K as a plumber, mumble something about unions and then go “100K to fix sinks sure sounds nice”.
What that framing misses is that a lot of plumbers have to fix situations where a sewer line ruptured and someone’s basement is covered in shit. Or like, you get called in because someone’s garbage disposal is clogged with something nasty, and the person won’t tell you what it is. Plumbers definitely should get paid a lot for what they do, though whether that’s actual true varies.
This is why being a septic guy seems like a good gig. I paid my septic guy $10k for one day's labor, with about $4k in materials to come in with a massive excavator and one helper.
I'm sure the cost of his excavator ran into ~$1k of wear/depreciation over that day but two men basically cleared $5k in a combined 20 man hours.
If you can deal with poop you can make a lot of money. Doesn't seem to be much interest in that trade either, no one thinks to become a septic installer.
