@alpharivelino best place to meet random strangers and filter out scumbags. nurses choose that path because of the emotional rollercoaster involved in that job similar to why majority women like fiction books.
@chiragbarjatya saw a similar case in my vicinity from a couple sold milk variants like cottonseed milk, urad milk, etc.
make fresh batch every morning. sold the milk in a wooden cart. in a market street. since 2016, now able to afford their own house. just pure repetition and hard work.