7 Day culture challenge Day 5 "Invisible Bubble"

I'm a bit behind on my culture post days. I've become mildly hooked on culture videos on YouTube where the host gives advice on what not to do in a foreign country, or travel advice for visitors that come to the U.S. A lot of them say the same thing in their advice to visitors to the U.S.:

Americans love their personal space!

Imagine an invisible bubble surrounding each person. Invade that bubble and you might be in for a confrontation.

You could be the nicest most intelligent person. A genius. A visiting dignitary. Rich and famous. But get in someone's "bubble" and all bets are off.

Ok I exaggerate, a little. In some places this isn't such a big deal. In urban cities people are more used to being crowded on the subway or sidewalk - getting bumped accidentally is usually not a big deal however I personally expect an apology even a brief acknowledgement that it was an accident. I've never lived in a big city so I'm unsure what the custom is there.

Anywhere else though you would be expected to apologize for bumping someone. Also, when standing in line do not get too close to someone. The tolerance level for this varies from region and existing cultural diversity.

And speaking of lines, line cutting is a big no-no in the U.S. Doesn't matter how old you are or how rich you are - everyone is expected to maintain the line order. At the ATM machine stand a few paces back to form the line, not directly behind the person. Same goes for the pharmacy picking up medicine. Any kind of private thing, especially involving money, give extra space.

We're germaphobes here. If you cough or sneeze please cover your mouth. If you don't, someone might call you out on that and reprimand you.
Remember this lady?

I wanna say this is a very animal and territorial kind of reaction you are courting if you don't "respect the bubble." It's like rolling the dice. Some people get physically very upset about it and might blow a gasket, others don't care.

You can fix it by just saying "I'm sorry, that was an accident" or "Pardon me, didn't mean that." In 90% of cases you will be forgiven and no harm done.

The other 10% well unfortunately you have encountered someone who is having a bad day and probably looking to unload their ire.

Some people get a "pass" on respecting the bubble and that would be the very old and the very young. I rarely see an old person getting in people's bubble but they do try to cut the line sometimes. It's polite to offer to let them cut if they only have a few items but you will find a lot of humor based stories about how this act of kindness can go awry as the elderly are notorious for taking a long time to check out.

Supposedly, We are Loud

I learned from a lot of YouTube videos from non-Americans that apparently we are loud. I never thought of myself as particularly loud in volume but I definitely can see how that is perceived especially as speech varies from regions here.

This lady does a good overview on accents

Yeah, some of them sound a bit loud to me.
I guess we have no problem invading people's auditory bubbles haha

What are your customs regarding space?
Are they the same or different?

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I was nominated by @conradt for this culture challenge. Thank you Conradt! :)
The rules:

Write a post about an aspect of your culture - e.g. food, arts, dance, economy, money, governement etc. Do this for 7 days in a row if you get nominated. Mention three people who should do this on each day. Tag it with #7dayculturechallenge and include these rules at the bottom of your post. Include a picture of something from your culutre related to yoru story if possible. Post these rules at the bottom of your post. Note - if you like the idea of this and would like to participate but weren't nominated, feel free to join in and just mention that I nominated you :)