Illegal transactions are also 11-12% of the USA's economy.[1]

In 2019, forex volume was $6.6T per day [2], or $1716T per year. Meanwhile global GDP was only $87.5T [3]. In other words, almost 95% of global currency volume is speculation. Why would anyone use currencies that are mainly used for speculation?

Both the traditional and crypto economies are reflections of human behavior, but because crypto is more transparent, you can see it for yourself. And a lot of people don't like what they see. But it's not a new problem nor unique to new currencies or technologies.

[1]: https://www.investopedia.com/articles/markets/032916/how-big...

[2]: https://www.financemagnates.com/institutional-forex/executio...

[3]: https://www.statista.com/statistics/268750/global-gross-dome...