What most people need to know is that they social network without Big Social every day.
I’ve already mentioned email—which is a social network.
But also any kind of address book with calendaring is social networking.
Document collaboration too.
IRC and SMS as well.
Once people become aware of this, the notion of a Fediverse isn’t that big of a leap.
@atomicpoet Even Signal groups, or iMessage groups have take over the role of secure private social networks for some clusters of family and friends...