If you don't care that much about the accuracy of your data (like only caring about a few decimals of accuracy in your floats), you don't generate huge amounts of data, you do not need to work with it across different tools and pass it back and forth, then yes CSV CAN be nice.
I wouldn't write it a love letter though. There's a reason that parquet exists.
I wouldn't write it a love letter though. There's a reason that parquet exists.