I'm not a teacher, but I've consistently (for 10 years) aspired to become one. Inspiring teachers are one of the top professions I can imagine. I've educated people privately on matters of computers, math, chemistry, physics, and some on issues related to mental health and well-being. I've received extremely good feedback on my work.
In my country, you need a university degree to qualify for the position of a teacher. I'm not going for that, so I won't become a teacher, except for possibly in some private education outside the regular system. It's usual for unqualified professionals to offer courses on a specialized subject matter in our country; for example, some detail in system administration or such.