But the numbers that appear on the screen that the bank gives you, you can use them to buy bitcoin, gold, real estate...whatever you want and whenever. The only issue you should be concerned with is how the bank can give you those numbers and that is a problem for all of us .

The banking system, fiat money has been working for hundreds of years and the whole world recognizes them, don't try to fight them or say nonsense. Instead, spend your time accumulating knowledge and skills to increase your wealth . If you don't trust banks, fiat money, governments , you just make a lot of money and exchange it for bitcoin ,  gold...whatever you think you can own .