More precisely it is "economic opportunity". I've yet to see more than a handful of people search out places of opportunity targeted at raising flourishing children, as opposed to seeking out economic opportunity. Raising flourishing children requires a community with good social capital, amongst other things --- money is only one, small contribution, and it is possible to make flourishing communities and children without much money. When I saw the headline about a global kid, I at first thought along these lines, since American society sucks at the pursuit of happiness and human flourishing (despite the propaganda to the contrary) --- and so it makes sense to move to another country/culture for a better social fabric.