I get it. I self host everything. I'm simplifying, but I'm not naive about it.
The problems you say, connection/power downtime are the biggest ones. And they're frustrating, but not near as frustrating as things you paid for going missing, forever.
My point though is, if we can get workstations out of the box ready, we can get home servers out of the box ready. The software already exists, the hardware already exists. The problem is not that people don't want it, that they're lazy, that the tools don't exist, the problem is that mobile devices are deliberately built to herd people to these services. Once they're hooked they're hooked. They're fundamentally disempowering.
I don't think it's laziness, it's just delegation of a time consuming process. In a similar vein, most of us no longer wash clothes using a washboard, grow our own food etc. Modern society is pretty much built around us not doing everything for ourselves and, as a result, we generally have a better quality of life.
Washing machines are an obvious improvement to washboards though.
With the modern service oriented way of listening to music and watching TV, you risk losing what you purchased, you're manipulated by algorithms, you're trapped in the net of a service provider. Is that really less stressful than pulling out a CD and putting it in a CD player?
Digital media is better than cassettes. But the service oriented way companies expect us to do it now is not better. We really hit peak digital media with mp3 playing software on our smartphones. Everything since has just made the experience worse.
The problems you say, connection/power downtime are the biggest ones. And they're frustrating, but not near as frustrating as things you paid for going missing, forever.
My point though is, if we can get workstations out of the box ready, we can get home servers out of the box ready. The software already exists, the hardware already exists. The problem is not that people don't want it, that they're lazy, that the tools don't exist, the problem is that mobile devices are deliberately built to herd people to these services. Once they're hooked they're hooked. They're fundamentally disempowering.