That depends on whether you study technology or join the company. Joining a company requires joining fee and trademark use fee. Trademark use fees are charged every year, and there is no need to learn technology. Many company trademarks are free for you to use, just pay.

However, many people who say that they have joined are false. They don't have a physical store, saying that someone else's shop recommended it to you. You have to see for yourself whether the store has used his registered trademark and whether it has the same name as the legal person in his business license.