Regarding the 10 minute coffee... You can leave as soon as you pay, at some small risk (which could easily be absorbed by the payment provider), you don't necessarily have to wait for the 10 minute confirmation.

> Africa's stranglehold on unstable currencies?

You misspelled "insanely inflating". At least BTC is deflationary, albeit unstably.

> Thieves being able to steal your electronics and your money all at once?

If you're irresponsible (weak passwords, no backups, leaving things decrypted, using Windows... hehe), sure. If you keep your money at somewhere like Coinbase (where they keep 90% of their funds offline in cold storage) and use 2 factor authentication, very unlikely.