@Stoori I reckon the way to drive adoption of Mobilizon et al is getting groups using it to calendar and track events for their members. Once enough people are using it for that, there will be a crowd to whom it may be worth promoting public events. I need to actually try out Mobilizon so I know what it can and can't do.
I've created an account on openevents.nz and set up a public test event, so folks can kick the tyres on Mobilizon:
The social network of the future: No ads, no corporate surveillance, ethical design, and decentralization! Own your data with Mastodon!