GPG is designed to be used by end users. It's a bit cumbersome, but you don't have to implement any algorithms, which is what I assume is meant by 'rolling your own crypto'.
Let's do a quick bias check: do you believe most Tibetans would secede given the vote?
I don't think they would, but neither do I know the statistic. If anyone can provide it (I couldn't), then if they would indeed vote to secede, I'll change my mind.
It is a common misconception that drinking distilled water is dangerous. Water isn't a major source of minerals. [source](https://biology.stackexchange.com/a/7194)
Why even put the lock on the outside? All smart locks I've encountered just communicate wirelessly with a smart lock inside. Physical keys are used as a backup.
You can use crayons/calculators in some situations, but pens/computers usually do a much better job. Secondly crayons/calculators just help you with the mechanics rather than the meaning.