Generally, most physical stores don't teach you the core, unless it is a professional training physical store. Some friends may want to find a mala Tang shop to study while working, but in fact, many core things will not let you know, such as the frying of mala Tang bottom materials, what seasonings are needed, how to fry, the frying process and matters needing attention, and so on.
There are also training institutions, and the tastes that basic training institutions can train are no problem. What you consider is the quality of teaching, teaching courses. Some training institutions may teach by recruiting someone who can do it or what they can do, but they may not be able to teach well, and what they can do may not be able to teach well. There are also training courses, some of which are taught by the church, some of which are explained from the beginning of raw materials to the marketing and promotion of later stores, depending on whether you choose. Of course, we should pay more attention to the price. Some training institutions may not charge a low price. Of course, several kinds of mala Tang may be more expensive if they are all learned. There are many kinds of mala Tang, but they are all the same.