We hope that since this doesn't require any real tech knowledge, even people who aren't super tech savvy can use it. I've shared it with my neighborhood, which has lots of elderly people, and they seem to be using it okay (only a handful of tech support requests). We think this is a service the grocery stores should be offering themselves -- hopefully it'll push them in that direction.

It would probably be ideal for the US to do something like the UK and force grocery stores to prioritize high risk households... but there's a lot our government's response leaves to be desired.

But even those of us who aren't high risk could still be carriers. I could go in a store and accidentally get everyone in it sick. We ALL need to be avoiding public places. :-/