> don't understand, don't want to understand They're a threshold for when things are complicated and not wanting to understand something is fair. But as an adu

> don't understand, don't want to understand They're a threshold for when things are complicated and not wanting to understand something is fair. But as an adult, you very likely have a home with an address, which contains a room with a common name, which contains a folder, which contains your documents (birth certificate or something similar). That means you already understand filesystems. As a non-poweruser that's all there is to it - beyond that is just being uncomfortable with something you haven't encountered.