Except they're not. The profusion of even naive encryption amongst the general population is effectively zero, assuming you exclude transparently-used encryption like SSL.
When 50% of the membership of AARP is using GPG and having key signing parties, then we can talk.
Actually, 10% might be enough, if you believe some of the research on how society-wide changes happen. That doesn't really change the overall conclusion at the moment, but it's nice to stay optimistic...
When 50% of the membership of AARP is using GPG and having key signing parties, then we can talk.