I don't think you can orange pill everyone, and each person will require a slightly different approach. Many people won't go from thinking you're in a cult, straight to being a maxi.

"Investment" is a matter of perspective. Of the people I know, I think they respond better to rational, diversified investment strategy initially. Or as a hedge against fiat hyperinflation. That is the sense in which they can see they are not "late" to Bitcoin.

Bitcoin might go up a lot, but it may not in the very near future. I wouldn't try to get a recent retiree to sell their bonds to go all-in on BTC.

I appreciate the compliment that I don't know almost nothing about Bitcoin, however. That was overly generous as I still find new things to learn every day.