summary of how the mRNA vaccines came to be recommended for children down to 6 months of age...as with the demonstrated results for adults, children will benefit as well.
The vaccines do indeed diminish transmission...and no vaccine is 100% effective..every vaccine that you and your kids have ever received has a limited efficacy....if you're waiting for perfection, you're going to be constantly disappointed...and acting irrationally.
Link: https://www.fda.gov/news-events/press-announcements/coronavirus-covid-19-update-fda-authorizes-moderna-and-pfizer-biontech-covid-19-vaccines-children