Coming from a former Cast Member...
I have seen parents bringing their kids when they were still in diapers! I always thought what kind of rides are the parents enjoying because they have their baby with them!? Yeah, they can each ride as single riders, but... I would suggest to take your child when you BOTH can enjoy the attractions TOGETHER! 5 yrs and above I would say. Taking a toddler 0-4 yrs is a waste, they won't remember the trip, then they will demand to go again!(LOL)
I was in the queue for Little Mermaid and saw a couple in front of me carrying their infant through the queue. They had to leave the stroller in stroller parking, so the father carried the infant. Obviously, the baby isn't going to remember anything. I guess I was just startled that people would bring their newborns to WDW.
Register on WDWMAGIC. This sidebar will go away, and you'll see fewer ads.