Living in the big city isn't as ideal as it may seem. Some people don't even know their neighbours.
Nowadays there is a lot of crimes, so some people are afraid of going out at evenings. Another huge problem are heavy traffics. The city dwellers suffer from noise, crowded buses. Furthermore, every day are many car accidents and is difficult to find a parking place. Besides, some districts look drab - dirty streets, destroyed buildings and general poverty remains in striking contrast to a reach areas. The problem of using drugs and alcohol is mostly the problem of cities.
morover big cities are polluted. Among most important causes are car fumes and factory emissions.
To sum up there are many various problems concerning big cities nevertheless more and more young people are attracted by urban life and that is way we have to try to improve the quality of it.