There are a few reasons Sphynx cats are banned in Germany. The first reason is that they are a hairless breed, which means they have little to no fur. This makes them more susceptible to diseases and parasites, which can be harmful to both the cat and its owner. Secondly, Sphynx cats tend to be very active and playful, which can sometimes lead to them scratching or biting their owners. Finally, because they are so rare, they are often expensive, and many people cannot afford to own one.