Put this outside a good number of pubs in the UK and you’ll make an absolute killing. It would have to offer a £1 toastie, of course, but the principle is the same.
Over here in the UK we don’t tip as a rule, unless we’ve been directly served by someone, and even then it’s mostly just to leave whatever change there may be.
But it’s become very fucking common for chain shops to ask if we want to round up to the nearest £ and donate that money to whichever charity they’re working with.
ITT: Poor, downtrodden leeches landlords talking about how hard it is to be a landlord, when the easiest way to end their suffering is to just sell their extra fucking house(s).