In this era, citizens more like to raise pets in various reasons. The rate of raising pets of different groups are unsimmilar to others. What drives various people to raise pets， Is it merely a pute hobby, or related to social problems？
Once I realized that people raising dogs are not for guarding, raising cats are not for deratization, raising lizards are not for decorating. people raising distinct pets vary in reason.
This will be considered in two aspects. First, I'll reveal the rate of raising pets of different age groups and the reasons they raise pets. Second, the reasons and the kinds of the pets they raise of special community（if I can find adequate information）: melancholia, homoerotism, politician
We should pay attention on this.