I’m Scottish and lived in SE England for quite a few years but now back in Scotland. England is a diverse country so I guess the differences really relate to the SE but I found it disconcerting that there were so many differences between the two countries.
Driving - I found motorway driving more aggressive in England. I guess there’s more people and more traffic which accounted for it but always felt like people were so slow when I drove back to Scotland
Sunday Lunch - my family always did a roast dinner in Scotland at about 6pm so the English “lunchtime” aspect took me by surprise even though the clue is in the name!
Alcohol & drugs - it was clear that Scotland had more of an issue with this. Many of my English colleagues and flatmates had never taken any drugs whereas I could barely name a person from home who hadn’t tried something. This could just have been the local areas I was in though!
Money - again probably just where I was living in each country, but far more English people appeared to have well off families and eg. went skiing every year or got assistance for a house deposit.
Opening hours - been mentioned a few times but I could never get used to the shops shutting on Sundays in England. I actually liked the idea of it for a peaceful day but always forgot.
Talking to strangers - happens ALL the time in Scotland & usually have a chat with cashiers at tills too. I found it rarely happened in England.
Words - Lots of language differences - I hadn’t realised some words I used were Scots! I discovered that I used the word “wee” to mean “little” all the time which English colleagues thought it was hilarious.
and the obvious one:
Weather - it was only when I moved to the SE that I realised that people actually wore those kind of summer clothes I saw in magazines! My flatmates thought I was mad when I sunbathed in the garden in the first warm day…I didn’t realise the sun might come out for several days in a row 😂