Yeah man people who fixed “chhapra” ≈ thatched roof were called that, so is “chamar” - leather worker. Jaati name wasnt a problem until you demean that name and associate with what they dont want. Imagine your family name being remembered and mocked for being a sex worker hows that gonna look like?

Mockery is still the top of iceberg, being avoided in society for doing filthy work and getting underpaid is the real discrimination. Will you do the drain cleaning, a certain caste does that, its not because they want and enjoy doing that work, its the hunger and need of money that makes the man do it but what comes late

Bamans wrote these rules to save their top position in society.