If Bitcoin were easy to understand, everyone would already know about it. Mass adoption will only happen if the general public doesn’t have to make any effort just like with Visa or Mastercard without needing to understand the paradigm shift of decentralization. For most people, it’s just another payment method different, but too speculative and too volatile. They prefer the stock market or gold. The only thing that could make them change their minds and take an interest is a black swan.