Which animal makes better pet? Why?

I don't have a pet, but I want to have pet in the future. I will have more free time when I will be old woman,and I may be going to lonely. I think the animal is dogs, because dogs especially have power of healing. I think dogs need masters. For example, when a master go back home, a dog approach a master. May be the dog is very happy then. I often hear this experiences. It is very enviable existence for me. I want to have a dog sometime!!

How My Childhood Helped Make Me The Person I am Today

When I was kindergartner, I was very very shy girl. For exsample when many kindergartners played slide in the preschool, I clung to my mother's arm all the time. After other kindergartners went home, I bagan to play slider.
But when I was pupil, I changed something in my mind. I don't know what change my mind. May be it is environment. I can learn about communication at school. Because I can meet many type people .
Now I am not shy girl than before. I can be positive.