Bitcoin is safe. Governments can block funds in banks when a financial crisis appears. I don't trust banks for my own money. Also fiat currency keeps losing its real value. Inflation is a hidden form of tax I pay while I hold fiat currency. Saving accounts may compensate my loss from inflation by paying me interest but my checking accounts in banks or my pocket money is subject to inflation. In the end, earning interest rarely protects my money from inflation. However it's not really safe to hold funds in saving accounts when a financial crisis appears and nobody can know when a financial crisis appears. When compare pros and cons, Bitcoin is better than fiat. Bitcoin is not a national currency of a country. It can not be affected by financial crisis.