oh that`s not only a millionaire's game, that goes also with completely normal cases!
The companies themselves cost yes not really much, more importantly is the concept, if that is not correct is possibly everything for the bin like with Shakira!

And there are legal ways to still have the finger on the trigger so to be able to decide where the money goes, it is ultimately always about the money to save the former owners over the duration of their lives and that of their descendants from the tax and to have the opportunity to finance meaningful projects or sponsor not useless state excesses that help no one except the politicians

With crypto this is relatively easy to achieve you just have to try with the first account to stay a little below the pickup limit for high taxation.
With the profit, the structure is then created and financed, then the remaining coins are transferred to the structure, which is possibly the only taxable process, and any subsequent profits (through price increases that are expected in the near future) are well kept and tax-free.
The whole thing can be implemented with less than 5000$, if more profit has already accrued it will be more expensive because of the taxes ;)

But for the financial freedom of one and his family that´s worth not only to think about it but act like that, its money that on ehas earned not the state in which one lives ;)