Unfortunately, "reasonable" generally means "can do the things typically done with smartphones these days", which include things like banking, media streaming, and civic stuff - things mediated by the very systems whose vendors aren't just embracing remote attestation, but actually driving its proliferation.
For better or worse[0], this is not a technical problem - it's a social/political one. Technology created it, by making remote attestation possible - but the actual problem is with why companies want to use it.
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[0] - Definitely worse. Technical problems are easy.
I don't care about this kind of private communication. I care about automating and debullshittifying my life, which includes stuff like banking and civics.
I didn't learn to program computers so I could use it to shitpost more privately. I learned it so I can make machines deal with things for me the way I want them to.
Unfortunately, "reasonable" generally means "can do the things typically done with smartphones these days", which include things like banking, media streaming, and civic stuff - things mediated by the very systems whose vendors aren't just embracing remote attestation, but actually driving its proliferation.
For better or worse[0], this is not a technical problem - it's a social/political one. Technology created it, by making remote attestation possible - but the actual problem is with why companies want to use it.
--
[0] - Definitely worse. Technical problems are easy.