In the town we live in currently, they have a Pee Wee Baseball league for kids starting at 3 years old. So we signed Jackson up and they played on Saturdays this summer. He had a lot of fun playing baseball and learned a lot. The league was very unorganized, which I wasn't a fan of, but I'm hoping next Spring, when we go to sign him up in the town we're moving to, there will be some better options for us.
He loved playing though, and that's really all that matters.