nicksellen, I've been involved in starting a mastodon instance (actually, hometown) for my home town (city population around 100k).
many challenges, but one is that it seems people expect/want something like facebook, not twitter.
I think twitter is already something a bit weird. facebook is normal, with groups, events, etc...
as far as I can see, there is no usable open source fediverse facebook replacement option.
I don't know if this is a problem yet, as I can support people more to learn other ways.