I've recently seen a trend in tech communities on lemmy where people have developed this mentality that computer hardware is as disposable as a compostable cup, and that after 10-15 years you should just chuck it in the bin and get something new. If someone asks for tech support, they'll just be told to buy new hardware. If someone is saddened their hardware is no longer supported by software they are just entitled, need to pull up their bootstraps, and "only" spend $100 to get something used that will also not be supported in 5 years. It doesn't matter if there is actual information out there that'll help them either. If the hardware is old, people will unanimously decide that nothing can be done.
I've seen this even in linux communities, what happened to people giving a damn about e-waste? Why is the solution always to just throw money at the problem? It's infuriating. I've half a mind to just block every tech/software community other than the ones on hexbear at this point.
It's just the nature of technology that the more advance it is, the harder it is to actually repair it.
Repairing pre-19th century tech (ie a shovel or a blanket or a wooden chair) is trivial because devices made with pre-19th century tech don't have some crazy demand for precision. A shovel will still be useful as a shovel even if the handle is an inch wider than the actual specs. It doesn't matter that the wooden leg you've replaced with isn't the exact same as the other three legs.
Repairing some 19th century tech like mechanical alarm clocks isn't hard either and is more than doable for hobbyists if they have access to machinist equipment like lathe machines and drill presses. You could use lathe machines to make your own screws, for example. CNC machines open up a lot of possibilities.
Repairing 1950s-1980s commercial electronics like ham radios becomes harder in the sense that you can't just make your own electrical components but have to buy them from a store. Repairing is being reduced to merely swapping parts instead of making your own parts to replace defective parts. But as far as swapping out defective components, it's not particularly hard. You basically just need a soldering iron. As far as how precise the components have to be, plenty of resistors had 20% tolerance. The commercial ham radio isn't build with parts that have <0.1% tolerance.
By the time you get to modern PCs, you mostly don't have the ability to truly repair them. You can swap out parts, but it's not like 1980s electronics where "parts" mean an individual capacitor or an individual transistor. Now "parts" mean the PSU or the motherboard or the CPU. People with defective radios can troubleshoot and pinpoint the components that fail while people with defective motherboard at best sniff at it to see if parts of it smelled burnt and look for bulging capacitors.
The only parts of a modern PC that you can still repair are the PSU, the chassis, and various fans. Everything else is just "it stopped working, so I'm going to order new parts on Amazon and throw the old part away." It's a far cry from a wooden chair where everything from the seat to the legs to the upholstery to the nails can be replaced.
I think people who are into computers don't really understand to the extend in which computers aren't really repairable relative to purely mechanical devices. "Do not panic because we can always make our own parts" which is present within hobbyist machinists is completely absent in computer enthusiasts.