Not your keys, not your money

I was here in my country buying food with the bank card... Suddenly there was a transaction denial saying that I made too many withdraws in one day...I tried again and there was the same message. I was simply unable to spend MY (maybe not) money. As I know how things work, I always have a second card from another bank when that things happen. It was amazing how fast the ideal of Bitcoin emerged from my mind immediately. Cash in bank is definitely not your money. They decide when and how you use "your" money...

Just telling you all a true ordinary story of money....