Sure, we could start with cookies. However, that would break a lot of the web with no immediate benefit.
On SSL everywhere (not "anywhere"), how much resources does it cost to negotiate SSL/TLS with every single smartphone in their area? Supposedly, not much[2]. I run https websites on an Atom server.
Frankly, that was rather unconvincing. Although it does seem likely than the entire process was driven by IETF trying to stay politically relevant in the face of SPDY.