For most people, Bitcoin is a one way street. You don't understand and start using it to later on go "you know what? having to jump through endless privacy invasive hoops and having my wealth stolen is way better I'm going back to fiat!"

It's the same as using electricity or the Internet, it's just objectively better technology. But. It will take time for people to understand, use and accept it. It'll also take time for the industry to grow and mature, for it to build out infrastructure and come to a consensus on which way is truly best to hold your own keys etc

We forget that people didn't just instantly understand and adopt massive advancements like electricity or the internet. It takes decades and while advertising may help it along a bit, it's not ultimately needed because in the long run, everyone will be sucked into the event horizon that is Bitcoin. Never to return to the shitfuckery that is the current "trust me bro" fiat universe