You can do without many things in life, another question is whether this will make our life more convenient
Ordinary citizens may have a lot of complaints about the activities of banks, but as long as there is such a thing as money, there is a need for specialized organizations whose activities are directly related to monetary transactions, and banks are an example of such organizations.
One way or another, we're forced to use banks for day-to-day payments. Salaries are paid in Fiat, while government services only rely on Fiat as payment method. It's quite difficult to live without a bank as nearly everything depends on Fiat. Crypto hasn't grown to a point where it's independent enough from the current monetary system. The wild fluctuations in price, along with limited adoption by merchants and businesses alike, makes living only from crypto a dream.
Nonetheless, we have to accept the fact that banks aren't going anywhere. These financial institutions still dominate the mainstream economy, even with crypto/Blockchain tech in play. With the recent announcement of launching new digital currencies for the public, it seems to me that both crypto and banks will co-exist for a very long time. As long as governments force the use of Fiat for day-to-day transactions, it'll be impossible to live without banks. Just my thoughts
Since we are talking about banks in the field of cryptocurrencies, I will assume that in the near future:
- cryptocurrencies will not replace banks
- banks will begin to actively and widely use blockchain technologies, albeit without full decentralization
- blockchain solutions can become a practical replacement for payment mechanisms, and will appear in every mobile phone, or IoT device.
- Classic cryptocurrencies and crypto protocols will continue to evolve, giving rise to solutions that will be partially borrowed by the banking sector.
- The crypto solutions themselves will continue to develop and expand the capabilities of, in a sense, an isolated environment of the crypto world.
- Between the real world + the banking sector, more "bridges" will be built than crypto-exchanges, other schemes of interaction between the two "worlds" will appear