Sure, other kids are a risk, as they always are. Everything is a risk evaluation, even with a vaccine mandate if the restaurant has two kids at every table with little space between them then it might not be a good idea to go in. Doesn't invalidate the fact that it would be better if all the adults are vaccinated.

Sure, but it seems at least a little unreasonable (at least disingenuous) to me to argue that “I want to be able to take unvaccinated members in my party into a restaurant confident that the other people in the establishment are proven to be vaccinated because it's dangerous if unvaccinated people gather in a public, indoor establishment.”

If unvax’d people represent such a risk to others in your judgment, you should not be part of putting unvax’d people in your own party into that situation.

(For context, I’m pro-vax, got vax’d literally the first day I was eligible, and have a kid under 12 that I can hardly wait until they’re eligible. I’m against any vax passport scheme that even theoretically allows tracking/correlation of my identity/location if shown to a party intent on tracking me.)