Usually a lot of people always forget to mention the fact that if you are not encrypting your paper wallet, it's a very unsafe way to store your coins. So if you do a paper wallet, always, always encrypt with BIP38, or anyone that finds the private key has all access to your coins.
True. However, although BIP38 is quite popular way of encrypting the private key, it may also be a possible point of failure in long term storage... What if it got replaced by another better BIP and not supported anymore? Finding the software/tools to decrypt the private may then be a big problem.