Thank you for sharing that story, Suetiful!
I observed so many similar lessons in contrast when I was in Bangalore, India… there were big glass skyscrapers where IT companies had built their offices. Then, only 6 meters away, there were slums exactly like you described. It was the most incredible contrast I had ever seen.
What can we do to help those people in the slums? I wish I had the answer. But I think if we start by educating others that such people need our help, and if we actively brainstorm and discuss possible solutions with each other, we can set in motion the change that needs to happen.