Garbage men

Today is rubbish day here in parkview, and up until now I had always seen this suberb as something of an enclave of normality (from the perspective of my Oz/NZ upbringing) against the surrounding seas of hardship and poverty, but as I was driving to the hospital this morning I saw three separate guys looking through the neighborhood’s rubbish bins. There is a lot of prosperity in Johannesburg, and also a significant amount of economic development and improvement (particuarly in the poorer black areas), but with social problems so deep that it results in people scavenging through suburban rubbish bins, where do you start if you want to implement meaningful social improvement and change?