Before I got into crypto, I went n research onto it. Talked to many people and among them are estate planners and lawyers.
What I understood was, in the past 2-3 years, some of their clients only gave them the instruction to pass on a set of gibberish codes to their next of kin. Little did they know, those were private keys. Apparently, lots of the old folks who were more insightful had already converted lots of $$ to crypto to pass on. Saves loads on tax.. lol