Not wanting to buy a major buggy. Dd is 7, and hyper mobile. She's fine for the most part but days out she's increasingly complaining of joint pain and actually asked not to go to the zoo last weekend because she knew she would have a full day walking. I generally dose her up with nurofen and calpol but she's still complaining her legs hurt. I know how she feels, I was the same as a child and hated days out because of it. So what small, light easy to push buggy will fit an average size skinny 7yo in? I know I'm going to be over the weight but I'm really not fussed as its only for occasional use