It can be quite important for adults to live as a greenhorn to survive in this rapidly changing world. This is because you can adapt flexibly to new surroundings with curiosity and courage and then achieve great financial success.
   When you were a child, you would always touch everything you could see in your environment with no hesitation. This action was derived from pure curiosity. However, as you get older, you will become less curious about everything you can see. This mind state can stem from experience and fear of failure. In other words, the more you learn and challenge, the more you will become afraid of failure. 
   As it is mentioned above, it is natural for many adults to maintain their status quo to avoid any negative consequences. That is to say, few people are willing to accept many mistakes. Thus, challenging new things like a little child can help you accomplish incredible goals. Just stay greenhorn!