If they don't know a dealer for the drugs they want they might decide to buy them online with cryptocurrency, and that's where a service like Tornado Cash is useful. Cash can be laundered too.

So teens buying drugs there parents don’t want them using. This is your use case for TornadoCash?

Cash cannot be so easily laundered as literally sending coins to an address and waiting a few minutes. Laundering cash requires physical infrastructure which can be tracked and monitored.

People like you are why crypto is dying. Not everybody needs to anonymously buy drugs online. When non-crypto bros here things like this they mark you and your project as criminal.

Teenagers are not the only ones who might want to buy drugs online