When my granddaughter had just turned five, I faced a TON of opposition from my family on whether we needed to take a stroller. I went through a ton of advice. One thing to seriously consider. Is your child(ren) willing after a day in the parks, to walk back to the bus or car without a stroller? Once you reach the park exit, your stroller will need to be turned in. It can be a long walk for little legs. And when you get back to your resort, same thing. Since we were driving as well, I threw the stroller into the car and it came in handy a couple of times outside the parks.