I will offer my services to create great looking and easy to follow presentations, if people want to do them, & collaborate on the information needed.

I think this is something that can be brainstormed here and then distributed.

A session for basics like device security settings, a session for vpns, a session or two for getting off Microsoft & google stuff, how to stop tracking, password best practices, what to avoid & why, social media alternatives, biometric & IoT awareness & dangers, etc.

If you are interested in running these workshops in your community, I Found this post and resources! to get started. And it’s great! We can definitely use more along these lines and add to it.
https://hachyderm.io/@evacide/113471490914100897

For someone who has a more than casual level of knowledge and experience in these areas , but perhaps not expert level, are there any suitable bodies of curriculae to be recommended which one might use to build such a course for a small town library?

I mean I'm confident I'd be able to whip up a suitable series of overviews for the layperson, but I suspect this may already have been done by someone out there?

I really don’t know if there is anything existing but I bet between other infosec people here they have posted a lot already, and you could crowd source one and build on it.

I think it’s about starting w small steps along with explaining what A does, & why you should switch to B, then showing everyone how to do it with them. Then another part can be about something else.

Like manage your settings for privacy for various common OS would be a good start. What everything does.

We do need to get expert advice in this, bc some people will be at greater risk than others.