What are your opinions on tips??

As a European the way they work in America is SO wild to me. Because wdym it's mandatory, tips were made for when you like the service like in expensive restaurants or when you have a friendly waiter. I even see corner stores or self serve stores asking for tips when they're doing bare minimum. But you kinda have to give it or they'll like spit in ur food or smth. Plus I feel bad because them servers are VERY underpaid. At the same time why has it become normalize for people to pay a servers wage and not they're boss??? Like Ik them bosses are happy they don't have to raise wages because they get pay through tips also. Overall I think Americans are just entitled and will ALWAYS find a way to capitalize something. Like I don't have a problem giving them tips but it's just the attitude ig.

Sorry for the rant O_o