What is Mature Global Citizenship?

Global Citizenship is a widely used term and yet it is actually highly contested and confusing - does it mean to be someone who has traveled widely, has a high level of education and speak multiple languages? Can someone from a rural area not be a Global Citizen then? Is Global Citizenship about gaining 21st century skills to compete in the labor market or is it questioning the rules of our world and imagining more life-giving alternatives?

One way to look at this is through SDG 12 - Responsible Consumption and Production. 

What does it mean to be a Mature Global Citizen, especially when many of us (who are reading this webpage) are in the top1% of the socio-economic class in our world? 

How can we question the economic stories we have been told and instead face up to our complicity in maintaining (even creating) inequality?

How can we use our knowledge and privilege for the flourishing of all?