I believe it is great that Illinois finally decided to join the rest of the states in allowing concealed carry.
Some people may be scared that gun violence will go up after this, especially in Chicago. However, they need to think and realize that criminals that use guns will always find a way to be violent if they desire to do so, regardless of any law.
When we did not have concealed carry, we still had issues with gun violence. On the other extreme, people would like Illinois and the rest of the United States to ban all guns, like Australia did. The problem with that is the criminals will not follow the law. That may actually increase the rate of gun-related crime in the U.S.