You're underestimating the power of cryptocurrencies, not just Bitcoin, but also ETH, Sol… Cryptocurrencies possess all the advantages of traditional finance while compensating for its disadvantages. Of course, some may worry that the elderly or those with intellectual disabilities won't be able to use cryptocurrencies. However, there will be cryptocurrency cards for their daily use. And every transaction is verified on the blockchain, making everyday buying and selling of goods perfectly feasible.