On our last trip to Disney, my son was still 3 so I brought a stroller with me. On this trip he is 5 and doesn't use a stroller at home anymore. However, I don't think he'll make it in the parks all day. What's the best option for a 5 year old. I would think and umbrella stroller (good quality) would be to small. Is renting the buggies at Disney the best way to go? Any other options?