I think the average user wouldn't care how it works, as long as it works. Only a handful of people understand the thing we nowadays call money either. Crypto must solve a real world problem to gain substantial use in everyday life. From my perspective, this premise is met. It only takes some time (and perhaps a financial crisis or two) for the larger public to become interested.
This is how I see it. As an investor and monetary activist
I obviously need to "understand Bitcoin". But for mass adoption this is not necessary. Bitcoin/ledger either works and serves as better money/memory, or it does not. If it does, it becomes the future and will be used by everyone (and everything I see suggests this is exactly what is happening). Most everyone will never understand anything more about bitcoin than they do about http - they will only care that it works, is safe, freeing and reliable. "Education" will happen on its own.