Northerners don't realise it's not normal for it to rain several times a week, even most days, okay that's just Manchester.
Northerners get cancer, alot more than Southerners, seriously, don't be a northerner your chances of getting cancer are shockingly bigger, also once you have cancer, the chances of you dying from it are rather bigger.
Northerners fail to recognise that the country exists beyond London, they need to recognise that the country gets very wide down there, and there's alot of it, Cornwall is just as far away from London as we are.
Southerners fail to recognise that the entire country isn't looking to London. Don't ask people from Newcastle if they're going to London casually, like it's something we all (northerners) do on the weekends, Newcastle is really bloody far away, it's alot easier for them to goto Edinburgh when it comes to capital cities. Alot of us have never been to London, ever, we don't know the tube, or the general geography, you can't say things like "oyster card" to us and expect us to know what you mean.
Southerners have a very bad geography of the north, they don't know where Liverpool/Manchester/Newcastle/Leeds/Sheffield are, not even relative to each other.
Northerners fail to recognise that London is *massive*, there are twice as many people in London as there are in the entire of Scotland. It's not just a particularly big Birmingham, it is MASSIVE.