I guess I dont trust hardware - why not just create your own seed phrase and pass phrase without any hardware to rely upon? That could work as well in this scenario right?
I am aware of creating your own BIP39 mnemonic phrase from a list of 2048 words.....the question then is to convert them to the keys to go with the chosen 12 or 24 words. I do not think that many users out there would opt to go with this if it becomes too technical.
Also then when it comes to generating a passphrase for the hidden wallet.
It should work but the question is again would the average Joe want to go thru this and be technical savvy enough to do it.