Until you forget changing 6 digit pin of your credit card before you travel to the country which accepts 4 digit normally. You’re f…d, the only way is to get call your family to make moneygram / western union transfer (or if you can do make such an order on your own). If you wonder which country I live, it’s the same country which has one of the highest banknotes 1000 CHF.
I think there needs be car 2 car ( or even car 2 human f.e. in smartphones and wearables ) introduced before self driving cars is capable to exist. Of course until real AI is introduced. We’re nowhere near the human capable ai