IMHO - we tried to tour with our first child when he was around 14 months - if the parents are really objective, they will see this is not really good for child. Constant jiggling of the trailer carriage, temp and ventilation in the carriage, baby food, diapers. An adult wouldn't like to travel in those conditions, wouldn't expect my child to like it either. In this case, the parents have to grow up and take care of their child, not their fantasy. Wait till the child can walk, talk and interact with your environment.