Take wallet.
Encrypt wallet.
Put sufficiently complex password on wallet (ie, no dictionary attacks).
Wow, you suddenly have a bank. Feel free to back up that file all you want, hell, if your password is solid you can publish it publically. I wouldn't, since you don't have to, but you still won't password crack it any time soon.
In other words, you're being disingenuous as to how simple it really is to get set up for Bitcoin. There are countless threads on Reddit and the like by confused geeks asking for advice and instructions on wallet generation/encryption/storage/etc.
Hell, throw a brief rundown into whatever their equivalent of "University 101" is if it really does prove to be a problem.
Some people really like tinkering with new tech and are willing to put up with a lot. Others have a low threshold of frustration and might not see it as appealing. This isn't about intelligence, but ease and convenience. And anyone that says with a straight face that setting up BTC for even the average MIT student is a simple endeavor is severely underestimating the complexity and risks involved, especially when the alternative is using the established and relatively risk-free system you've grown comfortable and intimately familiar with for years.