Because of their small size, the Affenhuahua (cross between Affenpinscher and Chihuahua) can get injured by rambunctious children easily. For this reason, these dogs mostly prefer the company of older kids and adults who are more gentle when playing with them. Affenhuahuas can be a perfect companion for children, though, if they learn the proper way of approaching these dogs at an early age.
On the other hand, in the matter of other animals, Affenhuahuas can get along with them just fine, given a gradual and calm introduction. Early socialization may also help. Although it's ideal that an Affenhuahua learns to socialize early, it's never too late for older Affenhuahuas to get less territorial. Cats and dogs, in particular, can be friends with Affenhuahuas. But generally, this breed likes to be the only pet and isn't really into other pets. Overall, it depends on socialization, training, and luck.
Your nearest veterinarian Cornelius, NC is a valuable resource when it comes to your pet’s health and needs.