At least using PGP or GPG for your emails isn't much effort. These tools are very easy to integrate into all of the common mail clients and some web services. The only "hard" part is to get your communication partners to use them as well.
Yes, but not in a technical sense. People think encryption is hard. They believe that they have to jump huge hurdles and will be confronted with an incredible learning curve in order to protect their privacy via encryption. The fact of the matter is, that this is simply a misconception. There's nothing hard about using PGP for instance. It integrates nicely almost everywhere the typical user would want to use it with. The process is already rather streamlined. Our job as those who know this is to educate those who don't in how to use encryption. Most people I've done this with so far said something like "What? That's it?".
