Don’t you see the answer right there in that quote of yours? It proves that the younger generation has no problem employing dalits but simply shows some deference to the sentiments of the older generation.
When the older generation passes on that family, do you think the problem continues?
That Marasi is how free societies and democracies solve great social problems - laws are necessary but they themselves cannot change the behavior of people overnight when it comes to old beliefs.
In dictatorships such as China they tried forcing change overnight and failed miserably. You should know this first hand in Pakistan. Overnight the terrorists were asked to lay down their arms, after decades of support; and you’re seeing what is going on yourself.
If you still are unconvinced, chew on this: Dr.Ambedkar who wrote the Indian Constitution is from a lower clas caste himself. Yet every Indian salutes the constitution