Life without bitcoin or altcoin of course you can, Many people use bitcoin or altcoin not for transactions but they use bitcoin as an investment, while transactions are used as an alternative to paper money, in essence people get a lot of benefits from investing in the world's cryptocurrency.
It is true that most people use Bitcoin for investment, so that it can be a source of income. If for financial transactions most people still use paper
money, and Bitcoin is used only as an alternative. Also, not all countries allow using Bitcoin as payment, so we can actually live without Bitcoin.
But for me now who has been using Bitcoin for 5 years, it looks like Bitcoin has become a part of my life. So life without Bitcoin is not perfect
and something is missing, so I don't want to live without Bitcoin.