"I can't convince my friends to come to #mastodon because it is too complicated to set up!"
And
"We need a decentralized federated #Facebook #twitter replacement!"
2 different issues. We don't need something at the scale of Facebook. Mastodon and federation work because it is people coming together in instances that connect to other communities, think neighborhoods to cities to provinces. It took a long time to build these nations, give Masto time to create more shared interest instances.