Every second family in Germany has a pet.

And for good reasons: The positive effects of cats, dogs and the like on children's development have now been well researched.

Nevertheless, many parents are afraid of the wish that every child expresses: "Can I get a dog, please?"

In addition to the question of who will look after the animal, many parents are concerned above all with the costs after the purchase - for feed, insurance, taxes and the visit to the vet.

How expensive are goldfish and golden retrievers really?