People over the age of 65 account for 76 percent of all wealth in the United States.
Consider where the crypto markets will be when the younger generations that have grown up with cryptocurrency reach the age of this group...
Those elderly people have invested most of their life in working so they have earned enough wealth to sustain their living but due to their age, I don't think they would still be able to learn about cryptocurrency since most of them aren't techy anymore. I guess the most effective way is to have them guided when it comes to crypto investment by their trusted family members.