What Are Some Staples of British Culture That Everyone Experiences Growing Up?

I was thinking the other day about how certain things just feel inherently British—stuff that pretty much everyone in the UK grows up with and carries into adulthood. Things like watching the Queen’s (now King’s) Speech on Christmas Day, endless discussions about the weather, or the unspoken rule of always forming a queue.

For instance, I recently learned about “Pinch, punch, first of the month”. I’m also currently watching a random episode of “Coronation Street” on ITV1.

What are some other things that you’d say are staples of British culture? Whether it’s TV shows, food, habits, or shared experiences, I’d love to hear what comes to mind!