People aren't good with "This is effective but not 100% effective" calculations but attempts by health people to compensate ("Since this is not 100% effective we need to stress how not effective it is so they know it's not 100% effective") just makes matters worse.
If it is the case that the vaccine is ineffective against spread and we have to wear masks to prevent spread, people talking about "But the messaging!" need to let it go. But...
if it's actually mostly about unverifiability and trust of who is vaccinated and who isn't, and conditional enforcement based on unknown status isn't feasible then just talk about that (perhaps using more simple words).
"I'm vaccinated, do I need to wear a mask?"
"We're still figuring that out. In private company among vaccinated, it's likely effective enough that you shouldn't worry about it. Public spaces may need more uniform rules, though, and it's important that people follow them."
This is much better than citing a (so-far) phantom study about viral loads being the same between vaccinated and unvaccinated, so that people will wear masks for fear of being just as likely to transmit as the unvaccinated. Which is what I fear they're doing.
IOW we shouldn't let fears that the vaccine-hesitant will misunderstand the need to wear masks talk us out of otherwise worthwhile masking rules. But we shouldn't aggressively repackage what we know to justify it, also.
Anyway, I think this is all hastening our progress towards the end of any attempted mitigation of spread (protection of the unvaccinated or attempts at variant-suppression).
And in sum, please let me vaccinate my daughter.
And I should add it is entirely possible that they're communicating as straightforwardly as they can with what they know. The cost of previous attempts at sciencing-to-message is that I can't really trust whether they are sciencing or messaging.
As is often the case, caught between two sides on the masking thing with some folks arguing that it's a minor inconvenience any complaints about which are posturing and whining, and a lot of people who are in fact posturing and whining.
Mask-wearing genuinely hits different people differently. That you don't mind, or your child doesn't mind (or there are no apparent adverse effects) is great. Not universally applicable.
And for heaven's sake, masks really are not an avatar for personal liberty.
For my part, I don't mind wearing masks. I don't have to wear them all day, however, so I don't know if that might change my perspective. My wife does wear them all day and doesn't mind them at all.
Phillip H explains well why I am so concerned about grade school in particular. I may be biased because my kid is in that group, but I do think if she weren't I'd be less insistent on doing everything possible to get her into a classroom. I think. ordinary-times.com/2020/08/20/eve…