How are pets important in the lives of people?

Well some people are diagnosed with depression, and at a young age you wouldn't really see it. As you get older you start excluding yourself from your friends and what not . So you want someone to talk to, that can't talk back, just listen .. and animals can tell when your scared or mad , they can just tell what your feeling and they can comfort you when no one is around. animals help out the community to, for blind people they have guiding dogs and for people who are sick with diabetes they have dogs that can tell your blood sugars low.