They also do not know that you would not have a reason that the baby would not need one. There could be a situation where someone other than people staying in the same room as the baby needs to take the baby back to the rooom. (Examples: Extended family staying in multiple rooms/resorts; Relatives/Friends that live in the area; Hired babysitters.) Also, where do they cut the age off? I know that under 3's are free to get in the parks, but a 2 year old is going to want a band if their 3-4 year old sibling has one. Does anyone know if an under 3 would need a MB to show proof of resort stay for EMH privileges? It might make it easier for those with kids close to the age of 3 with not having to explain when entering a line.