If you look at it as Currency, it is difficult for an average person to understand it because it is different.
Bitcoin, being a different kind of a digital currency, it breaks down conventional thinking in many aspects. No central regulatory body. The concept of mining. The open-ledger (blockchain), the way miners are rewarded, how transporting value is determined by its packet size and not value, the hash rate, the concept of limited supply. The 100 Million pennies in a Bitcoin, etc.
Its difficult enough for people in the money space to thoroughly understand Bitcoin (we all say we understand it, but do we really?).
For a common person, its an overkill. Its like trying to explain the concept of TCP/IP, Networking, Routing, the Internet for someone who wants to use email. Overkill.
We different perspective and point of view how we looks on something, but for me though that I can't fully understand yet the true meaning of bitcoin but I am trying to pursue what people also do. I need to get enough information to enlightened my mind to the things I dont know yet. I agree with you also that I and they who has a limited knowledge about bitcoin need to build progress to understand what this currency really are.