That's another thing that may feel good to say, but trying to manifest it in practice is really difficult. What more can you ask for from, say, a middle-school

That's another thing that may feel good to say, but trying to manifest it in practice is really difficult. What more can you ask for from, say, a middle-school algebra teacher other than that 1. they know the material well enough to teach it 2. they are capable of maintaining basic classroom discipline and 3. they are conscientious enough to grade papers and run the mechanics of a classroom and 4. don't have some sort of other spoiler disqualifier here like being abusive or pathologically impatient or something? Maybe a better way of phrasing it wouldn't be to say that the job of teacher is "easy" per se, but that it's something built into our genes. Teaching is a thing humans do, like talking or throwing, as a subset of our general human bonding skills. Being a decent teacher is obviously a bit more exclusive than "able to talk", but it's just not that exclusive in our species, it's a widely shared skill that has been selected on for many tens or hundreds of thousands of years. It's hard to imagine a stable economic situation where it isn't something we have an oversupply of.