I think this industry has a problem as a whole. The attitude towards new people is often terrible. It is also self perpetuating. Lots and lots of complaining about the "new wave of youtube climbers" but often very little in the way of real answers or solutions on how to get real training. The idea of hiring a guy and watching ... what if the person he hires is an unsafe clown? As noted, there are lots of them.
A local friend that owns a farm wanted to cut down several big sprawling trees. Over a beer one night we discussed the project. I offered to do the cutting work for free, or to help. He is a real DIY guy, and he wants to do it. I tried and tried to find him a local class, or even a class in the state about climbing. Nothing. Indoor "rock" climbing is as close as we could find.
I've showed him some things, and he is now a safe climber by my standards. Like many people on the internet, I'm afraid to teach him things because I fear things may go wrong when I'm not there. Plus I have no curriculum, and I'm really not qualified to run a class. Some things you just can't learn by fire, and I'm disorganized. Just as one scary example, he bought locking biners, but not auto locking ones. No big deal, except he didn't know how to tell, so he assumed they auto locked. He wasn't spinning the gate lock to the locked position. A real class could have taken a whole day on equipment, I used what I had. Like the sentiment here, he didn't know that he didn't know.
So yea ... what
semifnordic said. Learn to use a hand saw on the ground. Separate your climbing from your cutting. Learn to climb low and slow.