Inspired by Greta Thunberg, ABGs in cities like Makassar and Surabaya have launched Sekolah Sungai (River Schools) to clean up local waterways. This is a revival of the traditional gotong royong spirit but applied to modern climate despair.

Students constantly blended Indonesian with "Jaksel" English (South Jakarta slang), a linguistic badge of status that often alienated those from lower-income backgrounds.