It is sometimes argued that professionals like engineers and doctors should obligated to be employee in the state, where they studied. Nonetheless, there are those who consider that they should be free to work in another country where they want. In my opinion, workers, such as engineers and doctors have a right to work everywhere, not only in the country which they acquired knowledge. Firstly, this essay will discuss a requirement for several types of professionals to work in the country, where they trained and, secondly, an independent choice of workers where they work.