Re: Nope, don't care
"If the authorities can persuade a judge to grant them lawful access to your data, then they have the right to access it. If you decline to co-operate and open your devices, then you can stay in jail until you abide by the warrant. It removes the benefits of encryption accruing to criminals without harming the rest of us."
Police: We found this (old) smartphone in your kitchen drawer, looks like it's encrypted.
Tell us the password.
You: Erm, I stopped using that phone 3 years ago, I don't remember the password.
Police: Likely story, this is your jihadi/drug/pedo phone, right? Off to the nick with you until you give us the goods.
Plus issues around old people, people being set up with phones posted to them in the mail, random phones at a scene being associated with you. Police willing to perjure themselves who *think* you are a danger to society getting you indefinitely imprisoned without trial by claiming a random phone is yours and having the whole justice system back that imprisonment.
I don't think it's a great plan personally.