In my case, it is the fact that a secure and free (as in speech) alternative does not exist that leads me to believe that. And not in the sense that it’s theoretically secure, I mean in the practical sense that I cannot trust my parents to use any currently available “free” device and not immediately load it up with malware.
> In my case, it is the fact that a secure and free (as in speech) alternative does not exist that leads me to believe that.
I don't think that is a logical statement. Just something doesn't exist, does not prove that it can't exist. You need a stronger proof than that to show that in my opinion. At some point, you have to empower your users and trust them to do the right thing.