There are many ways to learn coffee technology, with different learning methods and different training fees. If you find a teaching video online for self-study, you don't need training fees, but you can't guarantee the taste of coffee for too long. If you choose to work in a physical store and steal things from school, you don't need training fees, and the boss will give you money. However, the general physical store will not recruit inexperienced novices, and will generally find people who understand the basic operations to operate. So, if you are inexperienced, you may be rejected by your boss.