The science is not murky at all. If you are vaccinated you can be infected. Have you been watching the news? We are on full lockdown again in my household, because vaccination isn't a guarantee to stop transmission.
I disagree. IMO At this point the only tool that can effectively stop transmission is masking, testing,and isolation. In the good old USA we have none of those.
I understand that we originally believed the vaccine stopped transmission. It is time to let that go.
The vaccine is a tool to reduce the risk of hospitalization and mortality.
Whether or not Kids are Less infectious is not a good criteria to evaluate the worthiness of giving kids the vaccine. It protects them and the people around them.
Please don't conflate the lack of proper disease controls with evaluating vaccine effectiveness. We need better testing contact tracing and community outreach. We have really miss managed this.
If the answer was yes, then vaxxing young kids makes more sense.