People keep pet hedgehogs for various reasons. Hedgehogs are known for their unique appearance and quirky personalities, which can make them fascinating and endearing pets. They are relatively low-maintenance compared to other pets, such as dogs or cats, and can be kept in smaller living spaces. Additionally, some people find the nocturnal behavior of hedgehogs intriguing, as they are most active at night. Hedgehogs are also known to form bonds with their owners and can be quite affectionate once they become comfortable in their environment.