Given that many service jobs are very poorly paid, I could see wanting a child better off financially. And I suppose that some service jobs are objectively pretty terrible to work at - point of this site, after all - though I'm not sure if that's a greater proportion than any other type of job.
But, you know, saying "I want my child to be well-paid and happy" doesn't require you to demean the workers themselves. And there's certainly some pretty decent-paid service jobs. Not *as* common as the low-paid ones, but...
More seriously, if retail wasn't demeaned, entitled custys would have to feel bad about the stuff they do. Since no one wants to think bad about themselves (unless severely depressed) people will rationalise - and demeaning retail workers will allow them to be entitled without cognitive dissonance.
At least in my store, we: stock grocery, coolers, be backup for registers, help people with photo kiosks, wrench apart disposable cameras to get the film, process the film, maintain the machines, make all sorts of products from photo books to basic prints, do facing, pull bays and totes for stocking, keep track of milk and other products' expiration dates, dump said expired product, maintain the restrooms, do trash in the breakroom and office, hunt coupons, put up and take down tags in our section, and much more. We have 4-5 people for photo.
One manager in Photo barely counts since he is rather accident prone (he just broke a component of our film processor), but is overall great.
Then our district guy thought "Hey, Photo does their stuff very well! But the front register people are not doing so well stocking and maintaining the candy aisle. LET'S MAKE PHOTO DO IT!"
Without us, you are on your own. We are also expected to drop everything if you need our assistance.
I thought it was worthy of an RHUer rant as well. I wish there was a week when all corporate must do the menial work for that pay.