Depends on the device/appliance imo. I've repaired my washer and dryer a couple of times (a pump failed on both, had to strip and clean the washer once after someone used it to clean a old teddy bear and didn't put it in a wash bag(the bear came apart)), the part was manufactured by a number of companies (prob the same OEM suppliers, just without the brand stamped into it) and was pretty quick to replace the part myself.
A couple of years ago my parents dryer packed up (heating element died), I went down to double check the issue, ordered the part (off Amazon of all places, was more expense then some other places, but next day delivery!) and swapped the part the next day (Took the lid off, which gave access to the screws for the front panel, popped that off, unscrewed and disconnected the old heater, reversed the process to put it back together, jobs done!). Rang my step bother to tell him it was fixed and he was in the process of buying them new dryer.
When it comes to most appliances, "professional" labour isn't required, just someone handy with a screwdriver and can follow along to a YouTube video. The thing I've come across with real life friends is that they either just need a small nudge to do it themselves or they value their time more than the cost of hiring someone / buying a new one. (though, me personally, I wouldn't touch gas with a 10 ft pole!)
EDIT: Also repaired a far few TV's for friends & family too, but I also have a decent soldering setup which I don't expect "normies" to have, Always fun when you can fix someones "broken" TV with a few pennies worth of capacitors because its just a bad power supply!
YouTube or the screwdriver? Because I've yet to come across a house without at least one crappy screwdriver somewhere (Used to do in home computer "servicing" as a side gig in my 20's and I would often forget my own screwdriver so would ask to use the computer owners for one of theirs - I'm not expecting everyone to have a high quality ratcheting screwdriver, but a simple one with a wooden handle that just about fits will often do the job in a pinch.).
In most households noone is going to pick up a screwdriver and start opening devices and appliances to try to fix them. When people have screwdrivers, usually it's in case they need to change a battery or a fuse, or maybe tighten something loose.
I base my findings on what people in my local working class area do and tell me about down the pub, not exactly your "typical NH crowd". Some of them need a bit of a nudge and explained to explain to them that these things are not rocket science and many are in fact pretty simple machines under the hood (if you ignore the control board(s) and just treat those as complete replacement parts).
Case in point, when my friend Sam first moved into her first home she said over a pint that she needed an electrician and asked if I know any. Sure I do, but asked her what she needed one for, was a simple case of changing a light fixture, told her I would come and show her how simple it is to do (esp with things like wago connectors), Now she has changed pretty much every light fixture in her own home herself. And the other month she rang me up because she was proud of herself and needed someone to tell and knew I would be proud of her too, the thumbsticks on her steamdeck stopped working (I think it took a knock and the part of the plastic thumb stick drove itself into the casing of the deck, she took the thing apartn sanded down the plastic parts in question so they would move smoothly again and put it back together), all by following a YT video on the subject. And yeah she was right, I was proud of her! (She is a customs enforcement officer, not exactly NH crowd.)
So she needed someone to change a light fixture. QED.
That being said, this probably borderline falls into what I mentioned. Not uncommon for people to manage themselves as it's just a light screwdriver job. But that's very different from the point, which is opening devices and appliances...
Not really when it comes to say a tumble dryer, heres a 6 min video on changing the heater element on a common UK brand drier. 30 min job to do if you never done it before! A lot of these things are pretty much "plug and play".
A couple of years ago my parents dryer packed up (heating element died), I went down to double check the issue, ordered the part (off Amazon of all places, was more expense then some other places, but next day delivery!) and swapped the part the next day (Took the lid off, which gave access to the screws for the front panel, popped that off, unscrewed and disconnected the old heater, reversed the process to put it back together, jobs done!). Rang my step bother to tell him it was fixed and he was in the process of buying them new dryer.
When it comes to most appliances, "professional" labour isn't required, just someone handy with a screwdriver and can follow along to a YouTube video. The thing I've come across with real life friends is that they either just need a small nudge to do it themselves or they value their time more than the cost of hiring someone / buying a new one. (though, me personally, I wouldn't touch gas with a 10 ft pole!)
EDIT: Also repaired a far few TV's for friends & family too, but I also have a decent soldering setup which I don't expect "normies" to have, Always fun when you can fix someones "broken" TV with a few pennies worth of capacitors because its just a bad power supply!