An interesting question to ponder though is what is the potential in the future. What is the probability that GBP becomes used for something beyond a medium of exchange in the UK?
vs.
What is the probability that BTC becomes a unified international medium of exchange?
Also, we are in the early stages of bitcoin today, so yes, you need to have some tech understanding. This will all be abstracted away soon. Do people need to understand TCP/IP to use the internet? Understand the internal combustion engine to drive a car? The same will happen for cryptocurrency.
[0] https://www.strategyanalytics.com/strategy-analytics/blogs/s... [1] https://techcrunch.com/2015/06/02/6-1b-smartphone-users-glob...