Which modern British social ritual is actually the most exhausting to keep up with?

You left your phone alone for two hours and now there's a civil war about the Year 4 cake sale. Muting is cowardice, apparently.

Standing armpit-to-armpit on a Northern Line carriage in August while lying to yourself that this is a lifestyle, not a hostage situation.

A complex mathematical ritual where someone always escapes paying and everyone silently resents Dave forever. Nobody dares rewrite the rules.

Posting your 5am run and matcha while secretly subsisting on Greggs and cortisol. The aesthetic must be maintained at all costs.

A national obligation to comment on drizzle with strangers, delivered with the gravity of a Shakespearean soliloquy. There is no opt-out.