I agree with the "Always tip" mentality. But maybe the problem is deeper than tipping. I'm interested in Nathan Robinson's thoughts grappling with the service industry as a whole, e.g. in his essay "Service With A Smile."[0] He writes: "There is something about the nature of the relationship between server and served that just doesn’t sit well with me." Why can't we just make our own food and brew our own coffee? Isn't it orders of magnitude less expensive?

[0] https://www.currentaffairs.org/2017/12/service-with-a-smile