The trouble is that Bitcoin only works for most people when they guess right and entrust it to someone who doesn't happen to be a crook. When they try to secure their ownership themselves it often turns into an unmitigated disaster. The problem is more associated with computer (and device) security than it is with Bitcoin itself, but it's not probably going to get any better as time goes by. Probably it will get worse in fact.
Actually that trend is reversing, just take a look at new generation wallets like
https://greenaddress.it/You have the convenience and ease of use of an online wallet but without any drawback since using a 2of2 signature the owner of the site can't run away with your funds.
For the same technological choice you are safe even if a trojan compromises your pc or your phone.
If they disappear your funds are safe using pre-signed transactions with nLockTime.
The backup is simple and one-time (using BIP32 HD wallets).
That considerably raises the bar for security relatively to all the others, but for unknown reasons (maybe polical ones?) greenaddress it's not even listed on the main bitcoin.org site.