I left 17 years ago in my mid- twenties missed it a bit at first after all there were no 24 hour shops in the provinces then, but I got a regular hit by visiting friends.
Then met a man, got married had baby, friends left London didn't miss it.
Man turned out to be snake in grass in so many ways so it's now just me and DD (10).
Yesterday I took her to Hampton Court, we parked a bit away and walked. Beautiful day London at it's best. I just felt for the first time every for a huge variety of reasons our quality of life would be better there. Sadly I have successful business where we live which is totally location specific so moving is not an option.
Really miss London and all it has to offer.