I don't really think crypto needs to be encouraged, or taught, in the evangelic sense. Yes, if people ask me, I will tell them excitedly about the future of commerce (blockchain). But people don't ask about blockchain unless they are already hooked by its exciting potential, and then you are preaching to the choir.

Conversely, when you approach others and talk about crypto or blockchain and they dont already know it, they almost exclusively reject it. Its too radical. They are too confused by the lies that exist around fiat being "safe" and the govt. backing it up with gold (which hasnt been the case for decades).

You were right when you said:
"What I question is that how long should any one individual spend trying to convince those around them to start investigating the alternative worlds that they do not yet see, although they exist."

They are blind to the possibility, and so be cautios about how much time you commit to convincing disinterested people, they will not come, UNTIL everyone comes. And yes, everyone will come, so yes "they" will come too, but not because of an argument being won, or a fact being learned.

The masses will come because they have no other choice, and as an aside because "the powers that be" tell them its "safe", which isnt the narrative yet, but will be.