The concept of having a single career is becoming obsolete. The next trend will be to have multiple jobs or methods to earn profit, and continuing education will be something that people do throughout their lives. As a result, this tendency has both advantages and disadvantages, I would write why we should have more than more careers. To begin with, change is inherent in nature, and people should continue to learn in order to achieve in life, nevertheless, having a side business will allow you to save cash for better plans and live life to the fullest. Furthermore, the future is unknown, so preparing for the worst-case scenario by pursuing a second career is the greatest alternative. For example, Tesla co-founder Elon Musk worked jobs to make enough money to start his own company. Optional revenue sources, of course, are usually beneficial in difficult conditions. Secondly, and perhaps most importantly, learning is a vicious spiral that never ends until we choose to stop....