I live in London and grew up elsewhere. I am not struggling but am aware that my London life has some definite downsides compared to life elsewhere. For me these are offset by some real advantages. I feel at home here because London is so densely populated and diverse that it's easy to find your niche. I also like the fact that London is for the most part liberal and accepting. Ukip didn't even bother standing in my ward.
The sheer variety of stuff to do is unmatched. People say you don't find time to do cultural stuff but I do - not so much the theatre, except children's theatre, as it isn't really my thing, but music and art exhibitions and museums, definitely, and I always look out family activities going on at the weekends and again the sheer number of people around means there are loads. Just today dh and I were saying how lucky we are to be able to do our food shopping in all manner of international shops and try out new ingredients.
I like that we are not tied to the car, the thread earlier where someone chortled at the idea of public transport after 6pm made me shudder.
My job doesn't really exist outside of London. I could do a watered down version of it but it would feel like a real compromise, and for what? A bigger house? I could swap my mid terrace by q training for something swanky with a gravel drive but would that make me happier?
I actually don't really mind my commute. I walk through a park, get a 20 min tube then walk through another park. I get to see big Ben and Westminster abbey from my desk. It feels exciting.
I think I have a good quality of life because I moved to London when I was young and made the most of its opportunities. My younger cousins are trying to establish their careers in smaller towns and I can see that they're really limiting themselves and are unlikely to break into the fields they want.
The rest of the world feels closer in London too as you can get direct flights or trains to most places you want to go.
In summary, I can see that life might be easier elsewhere, but less colourful, and I'd need something pretty special to draw me away. Living by the sea might be enough but I worry it might disappoint if the economy was dire or the people were unwelcoming to outsiders.