Yes for sure, cryptocurrencies can sure be used for our daily transactions, it's very possible and easy to do, though I see problems with bitcoin fulfilling this purpose without issues due to its mempool that is usually congested and often leads to really high fees, imagine buying something of $2 worth and having to pay up to $4 dollars in fees, and even at this, you still might have to wait for up to 30 minutes or more before the first transaction confirmation arrives, meanwhile some business will tell you that if your bitcoin payment does not get up to 2 or 3 blockchain confirmations, you aren't permitted to leave.
But generally, cryptocurrencies can indeed be used for our daily transactions on goods and services, but first, this can not happen without world wide adoption first, everybody will have to come to the knowledge of cryptocurrencies and how they work, learn how to set it up, and also learn how to manage and keep their received crypto payments safe from hackers, and also, how to reinvest the crypto they recieved in the business, all this needs to happen before we can really come to that stage when we can say that cryptocurrencies a few ripe adopted well enough to be used for daily transactions for goods and services.