This is my big problem with the Fediverse right now, not just Lemmy but Mastodon as well. Signing up is confusing as hell, finding the same communities as what we're used to on Reddit on Lemmy is borderline impossible when presented with the same communities across each instance. I follow several Politics communities and then I get a home page with multiple posts of the same link but different communities.
Grandma and Grandpa are on Facebook and Reddit because it's dead simple to create an account on both and find communities. They ain't coming to Lemmy without significant changes to the sign up processes. They don't care about centralized vs decentralized, is it as easy as what I'm trying to replace?