I find #s 2, 7, 8 and 10 probably linked in various ways. We dislike feeling shortchanged so food portions can get large. Some people will eat as long as there is something in from of them, others will eat what they want and discard the rest. The former leads to #7 which (hopefully) can lead to #10, while the latter can lead to #8 along with excess packaging used by retail and manufacturing to keep us thinking we are not being shortchanged there.
I wonder what the demographics are of the ‘foreigners’? We go to Europe and the unknowledgeable are shocked that you can drive from England to Poland in a long day (1013 miles!) A similar distance from New York City gets you to Chicago or the Georgia-SC border. Which also goes to (partially) explain the size of our vehicles (#14) - longer distances make urban vehicles a pain!
And so it goes!
1. Widespread fellow foreigners.
Taking my visits to the UK as a reference, the three above are not differences there.
In the 70’s my US born wife remarked on it being a country of skinny people - certainly not the case now.
Coffee shops are everywhere in the suburbs in the UK - the old shops that were grocers and butchers before supermarkets are now off-licenses (aka booze shops), nail/beauty salons and coffee shops. Even the three local garden centres (aka plant stores) near my parents house have attached coffee shops.
UK cars might not be quite as big as US ones, but lots of SUVs are being bought, and relative to the size of the roads, they are much bigger...:^)
Some of them are in conflict...