Bernadette--
I can answer a few of your questions:
Driving while talking on the phone? Yes and it's truly a pet-peeve of mine when I see people doing it. It's not like they don't sell hands-free kits or that you can have a blue tooth activated and have the person on your headphones or on your car stereo. People just drive with the phone to their ear all the time and not successfully. I can't tell you how many times I've had to move lanes to avoid hitting someone who can't multi-task and shouldn't.
Driving after a few beers? I will preface by saying that I love to drink. I love going out for dinner around Happy Hour to have a drink but I won't drive. I will call an Uber or a taxi if I am planning on having more than one drink. It is something I have never been comfortable with to know that even some of the most sensible people I know, have no qualms drinking in excess of the limit and get behind the wheel of their car.
Baby in own room from Day 1? I had one child in the US, two in the UK and they have been in their own room since Day 1. No one ever told me it was wrong, not even my health visitors. They were all excellent sleepers right away.
Spending hours in the coffee shop irrespective of working schedules?
Sort of. My husband and I have worked from home for years and many times we will be in the coffee shop doing work. We have known other people to meet up with their friends in the middle of the morning because their working schedules were not 8-5 but 11-8pm or 3-11pm and everything in between.
Hanging up the phone without saying goodbye?
Hanging up the phone without clarifying where and when they will meet?
None of my fellow American friends do this but my Mexican father and my FIL who is English do both these things. Lol
Eating out 90% of the time?
I personally don't because I love to cook and I am pretty good at it. I will go and eat out twice a month to a really good restaurant of food that I am not that good at cooking i.e., Thai or seafood dishes. I would have said that American people eat out frequently but not 90% of the time pre-CV19. In my city, our restaurants closed to eat-in customers but they were allowed take-away services. I belong to a "foodie FB group" for my city and I am amazed at how much people have been spending for take-away meals. Someone did put a poll up and it turns out that out of 400+ respondents, 60 of them eat out for EVERY meal. The rest eat out on average of 4x a week. It's not cheap either!
Asking someone out on a date in passing?
Yes. I have asked out someone and I've been asked out this way. Some of the funnest people I've ever met were from impromptu meetings.