I think, nowadays in this competitive world it is not enough to have a single job. That is to say, we are not able to reach our goals working only a singular job and modern people should be educated continuously. In this way, these processes becoming requirements of this tough and competitive worldwide.

There are we can see both advantages and disadvantages of having several jobs at once for people.

First of all, to say benefits having various of careers give people opportunity to try themselves on divers of spheres. Thus, people can reveal unknown skills which they possess, after that people can go on to discover and develop their talents. Because, people can do better profession which they interested and understandable and maybe he/she can earn more money doing it than doing several other jobs.

Second advantage is that people can get more practical experience by having several careers. In other words, by having various jobs people can meet various situations, environment and colleagues. And it is one of the necessaries to get to a higher rank and the higher position at work, the more money  you are going to make.

However,  as I said above there are also disadvantages of having several jobs. By having various career at once, people might be under strong pressure and it can lead to be bored, so people may even do not want to have a single career. And, there are other consequences as separating from family and it is the worst effect.

To sum up, I think that overhead problems can be solved. So, it depends on what people choose for career and how can he/she settle his/her time. Finally, I hope modern people can and need to work on various jobs.