Internet too is notoriously anonymous, Imagine if countries had banned it in its early days for fear that it may increase crime. Ofcourse it ended up increasing crimes and as well helped solve so many societal problems such as slow banking, millions of jobs created, online shopping, online verifications,... Cryptocurrency like every other things has its advantages & disadvantages but I bet its advantages far outweigh the disadvantages.
This is a good answer, kudos.
I guess it shall always come down to the balance between pros and cons.