To me, it's the missing liquidity that's missing. All funds invested in volatile or illiquid investments can pose problems for an individual who has saved a good long-term store of value. They may have made a good investment but be sold when the market is bad due to an emergency. I think that's why I view wealth management in terms of liquidity, preservation and growth. While there's a long-term component to bitcoin, it's also vital to retain sufficient funds available at hand. The right asset is not just based on the value it may have in the future but on when the funds will be required.
That depends on the choice.
If that investor chose the wrong assets and he's aware of the potential illiquidity of it, that's their problem to face.
But having this wealth in bitcoin, you'll barely have this problem and it's not a common one to see such.
That's why holding bitcoin is the best option to store wealth and as a store of value.
Many are not still not convince but that's their homework to be done.