A.S.
My first question is what do you pay her? Second... How much time is she with him? Third... Would you prefer that he wants to be with her over you?
As far as cartoons... He doesn't understand what they are or why he likes them yet. He likes the constant action and colors. There's plenty of time to learn. Having 2 kids the same age playing together... That's a dream! I would understand why she wouldn't be pushing herself on their play time if they're not needing it. When my kids are happily playing together... I leave a good thing alone! If it's not broke... Don't fix it!