Not every city is London or Manhattan.<p>And I&#x27;m not sure even those would be &quot;highly polluted&quot; these days (big Asian cities definitely are though - and I wouldn&#x27;t want to raise my kids in New Delhi or Beijing).<p>My wife grew up in Vienna and my son will grow up in Berlin, I think both provide for a much more interesting childhood than the suburb I grew up in, and are not really polluted or dangerous (maybe some parts are, but we don&#x27;t have to live downtown to get the benefits of the city).