Indeed, it's a great way to look at it.

I have toyed around with a couple of friends and Muun. Didn't explain much to them, I only wanted to provide the "look it's just this easy" pitch. The only self custody instruction I provided them was "keep this backup PDF well secured and everything will be fine'.

So, they are technically self-custodying, using on chain and lightning without a clue of what's going on. I guess we are slowly getting there.