There are certainly many local coffee training institutions, but most of them are definitely small training institutions.

There is no technical content. If you want to learn coffee, you'd better go and see it yourself. Small organizations generally have a price advantage, but you can't learn anything when you go, and it's hard to find a job when you come out.

I suggest you go to a large regular college to study, so that you can not only learn skills, but also ensure employment.

The study time depends on what courses you study, and also depends on your learning ability.

There is no age limit for learning this, and the entry is relatively simple. Don't worry if you haven't touched it.