My friends don't want their sex toy purchases found on the blockchain by their wives, or possibly seen by their employers. They work in a religious organization!
Wives and employers won't be able to follow the trail from the source to what was purchased. They also can't acquire this information by asking Wasabi or blockchain analysis firms. Analysis companies feed their data to government institutions and other 3rd parties. It remains private in a way that the wife and employer won't be told about it.
If you were following the discussion and have gotten the context, my point is that newbies might be better using Wasabi if all they want is a little privacy with risk of tainting their coins which might make it a problem for them when they send them to exchanges.
It's merely a tradeoff. What newbie, or casual user would want to risk their "clean UTXOs" commingled with "dirty UTXOs", and be possibly accused of complicity in money laundering?