[Renaud]

It's extremely different in other cultures.

Take China and Hong Kong, parts of the same country. In mainland China, queueing isn't a well respected practice. If you're at a counter, people will just come next to you and start talking to the clerk as if you didn't exist.

Try that in Hong Kong and you're going to get an earful at best and will probably get refused service.

Mainlanders visiting Hong Kong who don't realise these subtle differences in social norms end-up facing angry crowds and, sometimes, the altercations end-up on youtube, fuelling the rather prevalent local sentiment that people from China have no manners.

When you've been educated to respect queueing, visits to countries that have no concept for it can lead to unnerving experiences.