Really? Just stand behind the person in front of you.
There is a saying. "If you can't beat them join them!"
Waiting for a lift in BKK, HKG etc with a trolley with bags and golf clubs and when doors open I wait for those in lift to get out and those behind you rush around you at all costs to get in before you. So this happens once or twice and more people sneakily wait behind you. Next time lift arrives I push the trolley against lift doors so no one can get in and out. Those in lift manage to get out but those behind look at me as if I am the bad mannered person yet they had the intention of pushing past and didn't get their way.
I cannot tolerate poor bad mannered behaviour. Telling me this is how they grew up or that behaviour is accepted where they come from doesn't help me. I will just play their game. Sometimes it can be fun seeing them frustrated they couldn't get their way.