And then you go someplace, realize you left your charger at home, and find out despite your friend having dozens of barrel type power connector power adapters n

And then you go someplace, realize you left your charger at home, and find out despite your friend having dozens of barrel type power connector power adapters not a single one match the size/voltage/amperage/polarity of your device. Or you just borrow their USB-C adapter and don't have any worries.