Adjusting for income/social status and parental IQ, are children who grow up in cities far higher IQ than their country/suburb peers?

It seems stimulation of cities fosters high IQ, keeps a mental quickness and triggers openness to experience. A small child may hear 100 different languages growing up etc.

Children who are homeschooled have far higher rates of social problems/autism, poor social skills etc too... So more contact with people seems to be beneficial. I suspect being isolated means you're more likely to deviate way from the norm, but actually cities are more tolerant so may enable that.


If we consider the premier city, London to its surrounding areas.
>50% of the inhabitants have masters degrees or more making an higher iq environment/peers
>the average teacher is better educated and has a more specific degree to the subject
>obviously vastly more opportunities for activities/experiences
>diverse peer group, 50% foreign born keeps the mind from conforming/autopilot, also more danger and risk to deal with each day
>high traffic, low compassion, competitive environment keeps the child from being coddled, and is exposed to cutthroat business/serious professionals instead of farmers/retirees/losers who can't afford to live in cities or aren't educated enough
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