Imagine a world with wide spread trezor adoption.
I'd probably be in the minority when I say this, but if that becomes true I would get rid of my trezor. Privacy and such stuff.
Reality would be, I'd keep one for regular stuff, for convenience, but for everything else I don't want the world to know, it will be offline / off-the-grid.
What you described looks like a database of everything you do attached to a device. Whoever owns the company behind these devices would be rich with data (which they can sell.)
You could put an endless series of unique identities on the BIP 32 tree structure. Its personal identity management we are talking about here. This is identity freedom. Identity empowerment.
Right now we are forced to use almost one identity for everything due to technological limits. If you want to get a loan for a house you have to give unfettered access to the entirety of your personal identity. This is the tyranny. Not the freedom that trezor would afford by empowering its users with the capacity to authenticate with the identity of their chossing, without reveling other identities or even if they have other identities.
You could literally have "rep" as a trustful drug dealer. Verify your rep before a client even talks to you so that he knows you arent a cop. Then hand your trazor to a cop and he would have no way of using it to identify you as mr drug dealer. That is like the least Orwellian thing I have ever heard.
What do you guys think. Do you think I could make a living as what andreas antonopoulos is to bitcoin except for trezor?