You can learn any of this stuff and make a project out of it to learn together. Plumbing has a hard limit for sure, but swapping a line under a sink or some fixture can follow this process:
- find what you want to do.
- Go online and watch two YouTube tutorials.
- Go to the store and buy the tools.
- Do the thing.
- Realize you need another tool. Go back to the store.
- Do the thing again and either:
A) success!
B) call a plumber, and talk to them while they are there to learn (some will tell you to piss off and they just want to work, others will walk through it with you if you show genuine interest)
There is a subset of tasks in all home repair that hit a sweet spot of doable work for a weekend warrior. In plumbing, shark bites are amazing for quick adjustments / swapping sections of pipe. In electrical, one can relatively easily swap electrical outlets with the right tools (contactless power tester [PUT THE BATTERIES IN]). It should not require a handyman to mount a TV. Don’t want to spend the time? Fine. But finding a stud and mounting the plate is simple and requires basic household tools (cement or bricks get a little more complicated). Get a stud finder, screw driver, impact driver (overkill, but nice to have), and mounting equipment (maybe a basic socket set) and you’re good to go.
There is also a hard limit, and people should be familiarized enough to recognize it and ready to throw up their hands and call it when that limit is hit. No shame in calling a pro, but there is some benefit of googling things before just putting in a $200 service call.
But everyone should know how to shut off the water, gas, and electricity to the house. Always check your local code for whether you can do more advanced work (electrical). Where I live, it’s legal to do one’s own electrical work and minor updates (swapping outlets) without a permit. But immediately call a professional if you feel uncomfortable. I only do electrical early in the morning, when I’m focused and have enough time to call an electrician before nightfall.