I've even translated the bitcoin standard to my native language in the hopes of my parents reading it (in retrospect the choice of book was not great for that purpose) but the endeavor was unsuccessful. But it was more approached from "try to understand what I've dedicated my life to and why, instead of trying to convince them to invest first.

Financially I obviously regret not pushing them towards it more but I don't think you can really put any meaningful amount of your savings in bitcoin without at least understanding it a bit when you're that far towards the later stage in your life.