> No, but it's reasonably suspicious. And if whatever service you use to "mix" your money is connected to crime, it's not unreasonable for you to have costs involved with defending yourself.

If I'm sending crypto to a friend, they can see my account balance, and my entire account history. It's perfectly reasonable for me to want to hide this.

I ran into this exact use case a few years ago, and ended up depositing into a centralized exchange, immediately withdrawing it to my friend's account, essentially using the exchange as a "mixer".