With the wide spread news about scam investments over the past 10 years, some people may have hesitated and was initially disinterested or even against bitcoin, I did understand where they're coming from. However, bitcoin's adoption and popularity has become better and better every year, so that should be the reason why a lot of people have turned around and bought their own.
Those who embraced this kind of changes earlier has their share of fortune already, so yeah I definitely agree with the OP's title.
Changes are constant, those who were left behind probably doesn't want any changes.
In a way being skeptical about new things is good, as this could help them to avoid many potential scams that come their way, however they need to learn the difference between a ridiculous idea and a ground breaking one, as I am sure that if you have told people that a decentralized currency was not only possible but that in just a few years it will become one of the most important currencies around the world, people would have called you crazy, and yet that is exactly what happened.