So, I do get that customer service isn't as great as 'back in the day', but i have to disagree with the whole anyone under 30 doesn't know what their job is anymore.
In my last post, I mentioned poor customer service that took place 25+ years ago. So, obviously, it's not just a current situation. However, I do believe that, in general, customer service has declined over the years. One only has to shop their local
WalMart and be forced to either checkout your own items or wait in the one lane for 30 minutes that is open with a checkout person. Try to find someone in the store that actually knows anything about their products other than where to shelve them.
And it's not just
WalMart. My big box DIY stores used to employee actual plumbers and electricians (usually retired) to manage their respective departments in the store. Now, you get someone paid minimum wage to stock the shelves and they have no idea of the products they sell and cannot answer any customers questions.

I still remember what is was like to be under 30. But, in my day, we spent much more time talking to each other - face to face. I went to a family holiday party a few years ago and all the young people just sat on the chairs or couches with their smart phones typing messages to someone, somewhere, but certainly expressed their lack of desire to be in the moment at the family party. I know this might be the new normal for some people, but I feel sad for our society. IMHO, smart phones lead to stupid, detached, unable to socialize, people. That is not only young people affected, but mostly.
If you are a young person these days with good people skills, then you are probably a superstar. And, of course, there are young people who may be great at customer service.