求一篇“Why do people have pets”的英语演讲稿

Many people now have their spare time,it is a good way to kill time.
Pets sometimes can bring people,especially the old joy and happiness.
keeping pets is a good way to establish your feeling of responsibility.
If you have a doggy or something like that,you have to spend sometimes to walking outside with them,it's a way to keey you healthy.