Following as having similar thoughts myself similar situation I'm already in Scotland but I don't like it where I am
I've also done the move from England to Scotland
Pros
Cheaper housing
Cheaper everything! Pretty much (except flights, they sting you there)
Closer to family
LOVE the culture/social side of glasgow. There's loads to do and much of it is cheap or free.
LOVE the food, as well as Scots food lots of international cuisines at very good quality and reasonable prices in glasgow
Folk are friendly and welcoming generally speaking
Excellent public transport inc generally very easy to get a cab, I'm disabled too and I've found bus drivers and cab drivers very helpful
Glasgow is a great location base wise for accessing other parts of Scotland
Cons
Healthcare can be very hit and miss but that's true across uk
Weather - took me a while to adjust to SO MUCH RAIN but if you invest in good waterproof coats with well fitting not loose hoods (too windy for brollies), knee high boots and waterproof gloves you should be fine. The summers are generally better these days
Can be tricky when applying for jobs if most of your qualifications are English specific as there CAN be a lack of knowledge/prejudice there. Having lived back in Scotland several years now I understand why.
@grumplass genuine question do you have knowledge of other Uk cities? Pretty much all of them have "gone downhill" in the way you describe to some extent as that's the result of current and recent governance. Glasgow as far as I can tell (based on what friends/family who live in them are telling me) has actually been less hard hit than many English ones
I have less choice as I'm on benefits so would need to consider a cheaper area, but that's never been a problem for me I've lived in the cheaper areas and suburbs before.
Not significantly more worrying in my experience, people are people wherever you go, some nice some not so much.
My family are originally from a notoriously and infamously "rough" part of glasgow yet we all managed fine living there.
Of course some areas are more desirable than others and for various reasons the "rough" and "posh" areas can change over time. The same happens in other cities too.
I was just discussing the other day with a friend as they posted on Fb they were moving to a part of a city I used to live in, that when I lived there you avoided like the plague! Apparently due to major council decisions and investment it's now a very desirable area.
But, as I say, following, as I'm not overly familiar with how certain areas that my family don't have knowledge of are these days.
Areas which are still cheaper due to old reputations can be a savvy place to move to - if anyone glasgow based can advise of such areas I'd be interested to know and could be useful for op too