If you're worried that you've missed the cryptocurrency bus, fear not. Bitcoin transactions (300 K/day) are only 0.27% of the volume of credit card transactions (108 M/day). Monero transactions (21 K/day) currently only represent 0.01%. Cryptocurrencies still have a long way to go before they've realized their full potential.
"There were 39.6 billion combined [credit card] transactions in the U.S. in 2019. This figure includes 31.2 billion purchase transactions from the top 50 issuers of Visa and Mastercard credit cards in the U.S. plus another 5.66 billion from American Express and 2.72 billion from Discover.
If you divide that figure by 365, the results show that more than 108.6 million credit card transactions occur in the U.S. every day."
https://www.cardrates.com/advice/number-of-credit-card-transactions-per-day-year/
Graph of daily Monero transactions since 2016:
"There were 39.6 billion combined [credit card] transactions in the U.S. in 2019. This figure includes 31.2 billion purchase transactions from the top 50 issuers of Visa and Mastercard credit cards in the U.S. plus another 5.66 billion from American Express and 2.72 billion from Discover.
If you divide that figure by 365, the results show that more than 108.6 million credit card transactions occur in the U.S. every day."
https://www.cardrates.com/advice/number-of-credit-card-transactions-per-day-year/
Graph of daily Monero transactions since 2016: