Ask 1000 random people in a mall what cold storage is... and I guess 0 to 1 will have a clue what it roughly means. Among actual owners of BTC I guess a large proportion are uncertain about all the details in creating perfect cold storage.
This is a case of - once we know how, it seems so simple, but for someone who doesn't know it is so far from anything we have done before that we cannot even imagine what it is or how it would be done.
This was my main trepidation when getting into BTC. Any time you look at bitcoin as an outsider it looks like a bunch of hackers randomly stealing each other's BTC wallets back and forth. Scary if you're putting real money into it. Thankfully that's not the case, just the hype from poor news reporting.
For anyone looking to move their funds to cold storage, it's easy. Just get a 40.00 laptop off of Ebay and install Armory etc. Import your wallet, export a "watching only" wallet to run on your main computer, then turn that laptop off and stick it in the closet. You won't use it again until you need to spend your savings.
Youtube shows the various ways with various wallets. It's worth the extra 10 minutes.