I know my human had a parakeet and Betta fish when she was very young. I think she was about 5 years old. Of course her parents had to do most of the feeding & cleaning, but the cage & bowl were in her room.
Let's bark about potty training! Humans are always asking Mom if I was hard to potty train. They've all heard it is really hard to potty train little dogs.
I was closely supervised as a puppy, but not all puppies have humans who watch them constantly. My pals at PetSafe have invented a pawsome machine to reward a puppy for peeing on a pad instead of the carpet - even when the humans aren't looking.