Yes, I think some of the people on this thread (as well as the bill-splitting public shamers) are imagining - or claiming - people are quibbling over pennies. In fact, in some cases, people's bills double or treble or more, when the bill-splitters' subs kick in.
Absolutely. The issue comes when it most definitely is NOT pennies. Often people just don’t think - they assume everyone has the same disposable income/attitude towards “splashing out” as they do.
I got caught out when much younger with a (older) friend who was celebrating. Fortunately I knew enough about wine to realise she was ordering expensive bottles so didn’t drink any but she still wanted to split the bill. I was mortified to have to say I couldn’t - I just didn’t have that money. That’s what a lot of people don’t realise: it’s very embarrassing to feel you could be accused of “being tight”.
And there absolutely ARE people who will very deliberately take the piss. I was travelling abroad with a group with a girl who would order, THEN decide when the bill arrived whether or not she would contribute to a split bill. Took us a while to realise she was only agreeing to splitting the bill when she’d get more than she’d paid for! We then made her commit at the beginning of each meal as to how she was going to pay.
Similarly, someone whose company I enjoy, but has a tendency to play fast and loose with other people’s money, came out with us in a big group. He hadn’t noticed we’d asked for separate bills (the staff offered it as there were a LOT of us and it made it easier for them to allocate food/drinks to a seat then bill accordingly). He’d merrily ordered extra courses, sides, pudding AND starter etc. His face when he was presented with “his” bill was an absolute picture 