We have two for the twins, and have had them since they were 2 years old. We use them every trip. It's the boys carry on, and they pack it with the toys they want to take with them they pull them behind themselves, or ride them around just fine. As they get older, they're actually easier to use. We always get tons of comments...cute and practical. As a single mom who travels a lot with my kids... These are a God send.