Going back to open defecation, it's not only about having aesthetically pleasing toilets. To make crap valuable enough for someone to come and collect it, we need to fund sanitation chains. We use toilets to empty our bodily waste. Ironically, our bathroom toilets will not be sustainable unless we can empty them. If we can't, some people continue to practice open defecation rather than having a shit pit.
Dear @juecoree, To create a public flush toilet, political and economic funds, institutions, and infrastructure will be required.