Being a teacher in a training institution is poorly paid and has no future. Training institutions are generally for profit. You should not only be a teacher, but also have the requirement of "recruiting students", otherwise your salary may not be full. If the elderly are too experienced to do heavy work, there is a set of skills to recruit students. I don't think you are old enough to ask, so take the exam! This may have a better prospect! I have worked for several years and have experience! Finally, I jumped out and embarked on my career path.