You're paying for your meal at a restaurant as a large group. What's your strategy?
Personally, I'm a divide by group size kind of guy. If there's 12 people, just add it all up, add your tip and divide by 12. Everyone pays the same, and the waiter just walks round and everyone taps for the same amount.
I go out all the time with work colleagues in big groups and this is the strategy every time. The idea being, it just averages out over time if one person has more or less. And really, once you work it out the difference is usually +-£5 at most. It's fast and easy.
I have friends who are convinced this is the most complicated way to pay and is hugely unfair. Which I would get if the difference was massive or if we all didn't have well paid jobs. Their preferred way to pay is to have a single person pay the full bill, share bank details in WhatsApp, send receipt in WhatsApp and then everyone has to remember to tally up their bill and transfer the money across. To me that just seems needlessly complicated.

