Fiat is a very old currency, and cryptocurrency is the future, so when that time comes, that fiat will become priceless because of cryptocurrencies, then we don't need banks. All of the transactions that we are going to have will be faster than ever, it will save more time, energy, and effort unlike using fiat. We could buy anything we want all over the world without using credit cards, debit cards and so on, we are just going to lose it.

We have our Bitcoin wallet, our Nano Ledger, our Hardware wallet which we trusted the most. We don't need physical coins, we need virtual ones, so we could keep it safe from snatchers in the streets, we want to change the future.