"Puppies are fragile"
I do not recommend the tiny puppies for families with children under six years old. The pups are just to fragile, this doesn't mean I think your child would be unkind to a puppy, but toddlers fall down, if they fall on a toy puppy it will be seriously injured or killed. Please wait until your child is old enough to understand about the care & treatment of an animal.
Adopting a new baby is a very serious undertaking... yes, they are adorable, but.... they also cry, poop (a lot), pee (a lot), chew up, get into things and demand a lot of attention and patience. It's a big responsibility, please take all this into consideration and be sure your willing & able to put out the effort it takes to raise a happy, well adjusted puppy before making a decision to get one.
Please never buy a puppy as a gift unless you are POSITIVE it is wanted, just because you think they need one doesn't mean they want the responsibility. The animal shelters are full of unwanted pets.
Chihuahua Poison 101: What You Need to Know May 31, 2007