Thank you for your response.
I also have never kept pets in my life because I have asthma. So I didn't allow to have pets. But now I really want to keep pets to relax, feel warm and happy, and promote relationship between animals. If I decide to keep pets, I hope to have a small dog. There is no special reason but I like small dogs.
As you said, the time with pets is very very precious. People remember the time forever.
