How about being a campus travel agent in college? Is it busy? Is it useful?

It depends on your promotion and management skills. No matter how good the brand is for you, if there is no one to take care of it, you will get nothing. Through campus promotion, management, classes, couples, and club travel, there is a huge market. If It is impossible not to be busy in order to make money. Whether it is useful, first, the understanding of the knowledge of the travel route industry, and second, the cultivation of promotion, management, and business capabilities