

Maybe don’t explain the Fediverse. If they dislike AI, just say you use a Reddit alternative that isn’t partially owned by Sam Altman. If they’re concerned about being addicted to Instagram, say you use an Instagram alternative without the addictive algorithms.
OK, so I replied to a couple threads, but I’ll put my direct answer here. You have to frame it in terms of something they ALREADY care about, not try get them to care about decentralization.
I’m a non-technical Fedi user. I didn’t give a damn about decentralization or FOSS when I first joined. I only vaguely understood what those things even meant. (I do understand and care now, but that came later after I kept seeing people talk about them in Fedi spaces.)
I joined Lemmy because I cared about getting away from the big tech billionaires, basically. I’m sick of AI and don’t want to use Reddit as long as it’s partially owned by Sam Altman. I wasn’t thinking in terms of joining the Fediverse, I was thinking in terms of “Reddit alternative that doesn’t directly support Sam Altman/OpenAI.” The “choose an instance” thing was a barrier, but that faded after I found out I could change it later and decided to just default to the most popular instance for now.
Your non-technical friends probably don’t care about decentralization (yet), but they might care about:
-Fuck AI companies and the big tech billionaires
-Avoiding psychologically manipulative algorithms that make social media addiction more likely
-More human interactions, fewer ads and bots.
etc.
This part is harder, but you’d need to find communities on here they’d be interested in. I joined when I was thinking about deGoogling, and the thriving tech communities on here appealed to me for that reason even though I wasn’t a techie. This might be easier with a different part of the Fediverse, depending on the person’s interests. Lots of creative people of all stripes are on Mastodon, for instance.