I think it is impossible to do so, just because we have different generations and not all people in the world are able to use smartphones or computers to pay for their goods.
It's not like that you have to teach those boomers lol. You can surely teach your friends and encourage them to learn about Bitcoin and its technology. It's not impossible to actually make people interested especially in this hype trend.
One of the worst problems is volatility... this is what makes people look at bitcoin as an investment, a way to get return... this is why all of us hold bitcoin instead of spending it like a normal currency...
Yes, but volatile also make people just forget about everything and just following the hype and then throw away Bitcoin because they are searching for quick money.