I think it's safe to say that Delta has made kids (especially pre-pubescent kids) more contagious than earlier strains, but they still seem to be an undersized

I think it's safe to say that Delta has made kids (especially pre-pubescent kids) more contagious than earlier strains, but they still seem to be an undersized proportion of cases currently being reported. Even in states with spiking case loads and school in session with no mask mandates, the proportion of reported cases in children is less than their proportion of the population. That doesn't even factor in the proportion of adults who are vaccinated or have been previously infected and are much less likely to be infected now. It's honestly a pretty interesting phenomenon given the fact that most people's "common sense" is that kids transmit viruses extremely well.