We took our DD for the first time when she was 6 mths. We really did not have much of a problem. That was a lot she could go on / shows to see especially at MK and MGM. Also, there is the baby swap for most rides. It varies from ride to ride but basically, you both stand in line with the baby then at some point, one goes to ride and the other waits. When the first returns, then the other goes. It keeps you from both waiting in a line. She took her naps in the stroller on the go, so that was a perfect time for us the ride the scary rides, one at a time.