It's not just that people just don't like change (unless it's the coin kind). Heck I can't get my Mom away from rotary phones not alone use a new kind of money for things.
Rotary phones? Wow!

My mother finally made it to use a smartphone and therefore dropped her old but pretty stable Nokia 6310i.
In the beginning she really struggled with swiping her finger and tiny tipping on the surface.But now she got used to it.
However she often don't understand to what all those different apps are good for.
As I told her about Bitcoin her whole face looked like a huge question mark.It is just too much for the average people if they don't have knowledge about money in general, network systems, economics, politics etc. It's too complex.Therefore nothing will change with Bitcoin or cryptos over night.Many people are sceptic to new things. Especially when this also involves money!!