I would recommend getting a stroller for anyone ages 7 and under. especially if you're going during the hot months. The heat can really take a toll on a child and it might be good for them to sit in a stroller and rest. I have a 1, 5, and 7 year old and we'll be getting the double stroller. The 5 and 7 year old will probably take turns riding. As long as you can push it then why not. Your children will be much happier.