To understand Boomer attitudes towards service workers, you have to realize that when they were kids the employees at the neighborhood stores actually knew the products and learned the names of customers. They were also paid better, don't let anyone convince you otherwise. At my first job in 1999 there was an old Greatest Gen guy there still working part-time as a hobby and he'd supported a SAHM and sent several kids to Catholic school and college just selling furniture and getting commission payments.
Anyways, when the Boomers grew up they voted with their wallets for the cheapest no-frills slop imaginable for the next 5 decades(so you saw the rise of Wal-Mart et al). And because they're retards they expected to keep getting the same personalized service they got from stores/restaurants owned by their neighbors. Note how many of them don't even seem excited about the stuff they're consuming(many Boomer houses are full of hoarded garbage still in shopping bags) - they're going out because they want young people to pay tribute to them. It's like Maslow's hierarchy of needs, once you're set on money you start thinking about reputation and legacy.
Millennials were given some hope(if only because our Boomer parents saw us as extensions of themselves) so we played along for way longer before giving up. I remember after the Great Recession hit, stores like Best Buy were full of 23 year old college grads who were really enthusiastic and obviously hoping to get noticed/scouted by office workers passing through or at least promoted to store manager or something. But the Zoomers have realized they were doomed since the beginning because they had more cynical Gen X parents.