My two cents:
Get things arranged with the IRS or whatever they are called in your country. Especially if you have a considerable some invested in crypto ( i.e. More than few hundreds of dollars, I guess). Don't try to hide it.
Give your keys to someone you trust (childeren, spouse, whatever). Yes "trust". that word true.
It will only be a matter of time before exchanges start offering Transfer on Death (TOD) contingencies just in case. Ive had to set this up for a few accounts. As for private wallets... thats something to speak with an attorney on. I can only imagine how many of the fix number of coins have been lost forever already due to hardware being destroyed, passwords lost, and physical wallets going missing.
As of now, the IRS will only monitor people om Coinbase who have more than 20,000 dollars in crypto. Let it be known that you only pay taxes when you liquidate your funds