There is a big difference between having 1 BTC and having $8k dollars.

When you deposit $8k in a bank, there appears in your balance the amount of $8k.

However, the bank can transfer approximately $1,600 to the government in the form of compulsory deposit. And the other part can lend to other people.

These $6,400 will be spent and, at some point, deposited again. Hence a part will be handed over to the government as a compulsory deposit. And, more will be loaned again to other people.

But none of this is informed by your balance. Your balance is still intact in the amount of $8k. So, this money already have been passed to other people hands. And everyone thinks you have the right to that money.

What happens if everyone decide to withdrawn at the same time? Simple. Banks will say that this money does not exist.

For instance, in Brazil, approximately 48% of all money only exists in the form of electronic digits and could not be withdrawn if all people went to the banks in the same period of time.

When you have a bank balance, your money is not yours. It's from the bank and he owes you.

And, without a doubt, every economic crisis, some government prevents its citizens from redeeming what they have in savings. This happened in Greece two years ago, which is a country much more advanced than Brazil for example. And it has happened in Brazil several times throughout history.

It is very different to have 1 BTC. When you have 1 BTC registered in blockchain, it means that only your private key is able to move that BTC to other place.

Unlike FIAT money, your Bitcoin can only be moved by you.

That is why Bitcoin is the safest form of money in the world.!