Taking pets, what are the consequences?

Many people keep one or more pets. Maybe you have one yourself. However, most people have never stopped to consider the consequences for pets.

Which leads to the question:
"Is it justified that people keep animals as pets?"

With reasoning and facts, we want to invite you to formulate an answer to this question.
This may raise the question whether or not it is wise to have pets.

To clarify our opinions on keeping pets, we use the most familiar pet, the dog, as an example. Let's start by outlining the history of dogs.