Earlier quoted context omitted.
It will be great this set up can be commoditised so everyone can buy one for themselves/family.
You can add it the bucket of similar crap that nerds make when they don’t think to actually check if they’re building something that solves a problem that people actually want solved. The reality is that if you go to any family BBQ and start going on about the importance of self-hosting, I - someone that’s been working with computers my whole life - am going to roll my eyes and not be all that interested in the conve…
Yes, though only because it's a lot of trouble to set up today.
If it were completely commoditizated -- imagine one more button when setting up a new phone ("Choose where your data resides: Apple, Google, Facebook, Self hosted") and it was completely transparent then it would be used much more, especially if that's complemented by one of the nerds setting up e.g. a neighborhood sync server and everybody around knowing it and using it.
So yes, you are not wrong but the situation can change dramatically if ergonomics are improved. Which sadly most of the nerds never work on.