That's bull, although I see where they're coming from, the wind might blow those balloons down, and the way that those 2 balloons are constructed, they could very well land on people or knock stuff over. BUT, the children's character/Adult character debate is this. The adults today, were yesterday's children. That's why they say they are childrens characters. The kids that grew up with them, are now adults. But, they will always be known as childrens characters because that's when you get introduced to them, as children. If you're an adult and are just getting introduced to the Muppets or Peanuts, then you are messed up or Amish.
Daniel