So my frame of reference is remembering my first encounter with Bitcoin. Before I started mining Bitcoin I saw it a few times over the years and never got involved seriously, maybe I can call the mistake not investing enough time and thought to the concept and if I had I would have reached the conclusion sooner. I wont go over that mistake continually but suffice to say I did eventually decide to be involved years after I could have first started holding BTC as a very new idea reading about it on a Tech forum I was too skeptical by far.
However more usefully I would say in regards to the future again the world will change alot and peoples attitudes to various assets should be active and well considered, not just once but many times to adjust for all you dont know and just generally how the world will change in future. We will all do better with an open mind and challenge our first beliefs on any valid investment etc.