Strangely enough, I've never been off work yet because of my depression. I bought up my 2 sons (my husband worked, I stayed at home until our boys were 15 and 18), and I worked in the care sector for 20+ years. I think work has helped me - without a reason to get up and ready to go out during the day, I could very easily lapse into a worse state.
I went to work today, put on the "front", ran the day centre for the elderly people, made the buffet that they have, and then when I got home I had a cup of tea and fell asleep for an hour.
To think that London, or anywhere else for that matter, does not belong to any one demographic