Unfortunately, pollution may always be a problem in the big city despite the efforts made to reduce pollution such as the signs on the highway stating to not fill-up on gas or mow your yard until after p.m.
Crime There is always more crime in a big city, causing you second case your decision for living in a big city.
In most situations, in large cities,the advanced transportation has more power in favor of people's movement.
Unfortunately,living in a small town,it is not convenient to save time on their traffic because they need to change the route to another place.
You are much more likely to be a victim of a crime living in a big city than in a small town.
However, I must say, after eight years of living in a big city, and in the not-so-great part of the town; I was never a victim of a crime other than some kid putting their gum on my car once.
Some people enjoy this, while others prefer the peace and quiet of a small town.
Traffic Traffic can be a nightmare in the big city.
In a large city,because of the developed traffic,people can go where they want to as soon as possible.
On the another hand,living in a large city can help people save more money than living in a small town.