Shall we keep pets at home?

I think we musn't keep pets at home, because pets, like us, are racional animals and they'd prefer to live in their natural environment.

In fact, on the 6th January, the three Magic Kings left at my little sister's shoes three goldfish. They're in a small receptable and they're moving all the time, so they're not confortable enough. I think they're going to die, but everytime I say that, my little sister starts crying, so I don't say that any more.

Maybe the animals which will live very well at their homes with a human family, but I think they can't be happy at all.

Everybody needs company from their same kind, included animals.