Tipping is WAY out of control here in the US. I am old enough that I got to be a young adult while tipping was still totally seen as an option to show appreciation if you received extra good service. It also caused the servers (most of them) to at least pretend to be cheery and extra helpful.
I laughed the first time I saw a tip cup attached to the shelf at the pickup window at Starbucks, like I am supposed to tip them for handing my cup out the window?? LOL.. I find that totally absurd.