Admittedly I've never made any transactions that I would feel need mixing...
This being said... well, sorry to say, but "you know nothing, Jon Snow".
Imho mixers have their use for people more privacy conscious than you.
Ah, yes. And yet he felt prompted to share his wisdom about something he doesn't know much about or understand people's need for such services.

Yes, there's always a risk that some idiots may consider those coins of you "tainted", a risk some are willing to take and some not.
And these same idiots don't think twice about whether the banknotes they receive every day from strangers are tainted or not. Just because Bitcoin transactions are easily traceable on the blockchain, someone in the government thought it would be a good idea to limit its usability. The whole concept of "tainted" coins is a scam in itself, organized by governments.