Bitcoin is not just for criminals, it's also for sex workers, who use it to pay for advertising on backpage.com (VISA stopped serving them.) Bitcoin is also for addicts who live in small towns and need to order drugs through the mail. Bitcoin is for people who want to buy heroin - not fentanyl.
Bitcoin is for Venezuelans and Argentinians, whose flag money is created faster and faster by corrupt governments. Bitcoin is for me because it allows me to hold my own money and I don't have to invest in stocks and bonds/ corporatocracy to simply save my wealth for a rainy day.