How much! General musical instruments have training. However, I suggest you learn the guitar. If you don't want to go this way in the future, there is no need to learn from them. Besides, the current training market is all about your money. They don't care how you learn fingering and musicology. They don't care. Just teach you a few songs and they will feel at ease! If you go to an ordinary musical instrument store to study, I suggest that you might as well teach yourself. Find a few people who love guitar to study together, which will make them motivated. If you want to take the road of music, it is not recommended that you study in a musical instrument store, and go directly to the Art College.