One major difference is that children need new clothes every month, they need new toys, new diapers, etc. There are reasons why caring for a child is more expen

One major difference is that children need new clothes every month, they need new toys, new diapers, etc. There are reasons why caring for a child is more expensive than caring for an adult. Of course, you can argue that all of these are unnecessary, but it is likely that they are taken into account when discussing average emissions.