Earlier quoted context omitted.
Although i think that's what most people want. One of the reasons centralization won out for email is dealing with spam can be absolutely exhausting, so gmail started to look really attractive for the average user.
This is why I think a big player needs to get involved. As soon as Google hosts a Mastodon instance, that will ease the entry for a lot of people.
Google used to host the biggest xmpp server (google talk), and then they defederated from the rest of the network.