Say, someone wants to buy 2nd hand ps4 from someone. Why would he be so eager to use cryptos with anon feature and hide his transactions?
There's always been the chance of governments attempting to outlaw cyrptocurrency outright. If they don't do that, they might also attempt to kill it with overbearing regulation, or according to Anonymint, confiscation. People see anonymous coins as being a safeguard to both of those variables, amongst others. Purely speculative on my part of course.
But the more you try to hide your transactions, the more they keep an eye on you. And also, the government may persuade companies like amazon, dell, etc. not to support cryptos with these feature.
dell already allow btc, we can always convert xmr -> btc, plus you don't need to fear surveillance with anonymous crypto only with bitcoin and clones.