Essay: Young people move to cities

These days, there are increasing numbers of young people from the countryside moving to cities in search of jobs and educational opportunities. Personally, I think it has some drawbacks that will be discussed in this essay together with some reasons about this.
To begin with, the major cause that leads to urban migration of young adults is that cities often offer more well-paid jobs and study chances compared to rural areas. Obviously, many large companies and universities often locate in cities which are hailed as promising lands to develop their career. Therefore they move to big cities to pursue academic career and find jobs in order to have a higher standard of living. For example, if a gradate stays in the city after leaving his college and seeks a job with good salary instead of returning his village to do farm work, he could perhaps buy a house or his own car after a short time. 
However, this phenomenon sometimes poses several negative consequences. There can be no doubt that the burgeoning number of young adults from the countryside flocking to cities gives rise to overpopulation in cities. As a result, cities cannot provide adequate space for thousands of dwellers that might lead to poor housing conditions and sanitation. Additionally, it might put strain on the environment. If there are more people in the cities, there would be large numbers of vehicles on the road, which causes air pollution.
In conclusion, young people tend to study or work in urban areas since these provide them many educational opportunities and career potentials. In my opinion, however, I do not approve of this trend due to negative effects such as low quality of life and affecting the environment.
Argumentative components: young people tend to study or work in urban areas
these provide them many educational opportunities and career potentials
I do not approve of this trend due to negative effects such as low quality of life and affecting the environment
cities often offer more well-paid jobs and study chances compared to rural areas
they move to big cities to pursue academic career and find jobs in order to have a higher standard of living
many large companies and universities often locate in cities which are hailed as promising lands to develop their career
if a gradate stays in the city after leaving his college and seeks a job with good salary instead of returning his village to do farm work, he could perhaps buy a house or his own car after a short time
cities cannot provide adequate space for thousands of dwellers that might lead to poor housing conditions and sanitation
the burgeoning number of young adults from the countryside flocking to cities gives rise to overpopulation in cities
it might put strain on the environment
If there are more people in the cities, there would be large numbers of vehicles on the road, which causes air pollution
Major claims:
I do not approve of this trend due to negative effects such as low quality of life and affecting the environment

Claims:
young people tend to study or work in urban areas
I do not approve of this trend due to negative effects such as low quality of life and affecting the environment
they move to big cities to pursue academic career and find jobs in order to have a higher standard of living
cities cannot provide adequate space for thousands of dwellers that might lead to poor housing conditions and sanitation

Premises:
these provide them many educational opportunities and career potentials
cities often offer more well-paid jobs and study chances compared to rural areas
many large companies and universities often locate in cities which are hailed as promising lands to develop their career
if a gradate stays in the city after leaving his college and seeks a job with good salary instead of returning his village to do farm work, he could perhaps buy a house or his own car after a short time
the burgeoning number of young adults from the countryside flocking to cities gives rise to overpopulation in cities
it might put strain on the environment
If there are more people in the cities, there would be large numbers of vehicles on the road, which causes air pollution