Honestly, there's not enough conversation around data sovereignty as there should be.
It just goes against the grain of what "smart" people these days think should be the focus. Most developers seek to raise walls around it and raise it like a herd of cattle so their corporation can be the sole benefactor of the slaughter.
It can be incredibly cheap to run a home server, why don't more people do it? Why isn't it popular to host your own data?
I'm not even touching on the security and privacy aspect of it, I'm talking the mere economics of it.
I have 2 kids and a wife and I'm super involved with my extended family ie in laws, brothers, my parents. Just think about the aggregated cost per year on data hosting subscriptions. If everyone pays between $2-$5 in an extended family of 10, you can pay for a $600 server in one year. Most hardware should last you at least 5 if taken care of correctly.