You may be just changing the ambiance and how life in London is, depending on the limited city you have been to and for sure it is still tourist spots. The cities in each country live differently, there is a so-called rich city which is very far from their lifestyle compared to those in the province are, although United kingdom is in the top richest country, we know that the cost of living there is not just the typical cost of living in other country and they will need to work at least 1-2 jobs to cover their expenses. London is also known for its high fashion brands and styles, I have a few friends who are currently living in London and after months of living there, they changed a lot, like extravagant and elegant changes because they have to align their dress code and lifestyle in the city they live in.