The anecdotal end user from the OP may have heard the word “bitcoin,” but has no idea what it is. SAFE may well be a force in changing that, eventually. As for now, cryptocurrencies are simply not part of the way towards mass adoption.
They use it without a thought no matter what. Security is costly, so let’s just do enough to not get hacked all the time. Privacy is even lower down the list, as our clueless end user will go with whatever is shinier anyway. It’s usually just a lucky coincidence, a side-effect, that what’s done for security covers some of privacy as well.
Oh, by the way, can you remember when Facebook chat messages were still going across the world in plain text? Though chances are you didn’t even know that’s how it was at the time. Well, nobody cared. I rest my case.
As for the rest, I’ll link a post here from the other thread, because I don’t want to go off-topic too much.
EDIT: Yes, it keeps coming up; SAFE may indeed get adoption in the back-end faster. It will be interesting to see how the customer v.s. service provider thing will play out in the long run. I wonder if we’ve seen anything similar to this; it’s hard to even guess where things can go.