My hairdresser asked me a question I figured the best place to ask was here! Her daughter is autistic and fairly profound case of autism. I know she is making strides but obviously very far behind where a normal seven year old is. My hairdresser would like to be able to continue towing here in a trailer but obviously her daughter has outgrown the Burley types. Are there any that could handle a larger child? I believe she is the size of an average 6-7 year old. It would be just very short rides around local parks, I think her daughter is not capable of riding a tag along or similar bike. I believe balance would be a major issue plus behavioral struggles.