France, Dec. 5 -- South Africa used its G20 presidency this year to push youth involvement more than any previous summit. The Y20 process- created in 2010 to bring young people into G20 debates- took on new urgency, given that Africa has the world's largest population under the age of 30.

Y20 South Africa 2025 ran under the theme Youth for Global Progress. Its aim was to open space for young leaders to help shape the global agenda.

Levi Singh, its 25-year-old chief coordinator, said encouraging youth participation in global events and politics should be an absolute priority. This G20, he added, was the most successful so far in getting that message across.

"As this was the last time that the global south was leading the G20 for the for...