It's so funny that at this stage and century , some people still believe that Bitcoin is a scam after it has proven itself over and over which has led to it's massive adoption.
If anyone still thinks Bitcoin is a scam and depending only on fiat currencies then he or she is a slave to fiat system and believe it or not Fiat is brain rot.
There are so many things these peoples must understand to know why they are really a slave to the fiat system.
If Satoshi himself didn't want to waste time explaining what bitcoin was to people not interested in learning, nobody else should do it. If people are happy being enslaved by fiat currencies and paying a lot money for taxes, money that usually is either stolen or wasted, let them be. It's ok to talk about bitcoin if the topic comes up during a conversation but if the other person is not open to learn than it's pointless. Maybe they'll understand in the future.