Of course that I use cryptocurrency in every day life, why wouldn't I ? A lot of people are getting paid in cryptocurrency so it's natural we use it to buy stuff, tons of mainstream services and shops accept bitcoin, you can easily order a pizza or burger with it. The best part of using crypto is that as long as you pay attention to security (never keeping anything on exchanges and staying away from KYC/AML centralized exchanges in general, safely securing private keys, only using open source wallets like Armory, HODLER, Electrum etc) you can really sleep tight and don't have worries about your savings. With fiat you never know what the banks and governments can do, but with bitcoin your money is sovereign and backed by pure energy.