You can leave the stroller open on the ferry and the monorail at less crowded times without any problem. When it crowded, though, I always take DS out of the stroller and fold it. It is courteous since it makes more room for guests and the way some people push and shove I'm afraid he'll get trampled, fell on, or tripped over down there in his stroller
We need a double sroller and had no problems on the monorail.......people are just wonderful and never asked us to wake our sleeping child to fold it up and make room. I love Disney and the mood it puts everyone in! Try that at home!
Kathy and her boys! and one due in June!