Take it from Satoshi's mouth: "If you dont believe me or dont get it, I dont have time to try to convince you, sorry".
Personally, my family doesn't get the need of it because "oUr LoCaL mOnEy iS FiNe"; and the typical criticism that it's not physical; and if I'm going to try to defend it, they're just like "ehh ok". So basically, they're not interested. So what do I do? Just go throughout my day normally. You really just cant get everyone to be interested in such a niche subject.