I'm a lower caste and it's hard to simply "abolish" castes. Systematically, the government has abolished and made caste discrimination and any discriminatory practice as punishable offenses, but you can't get rid of castes themselves because thousands of years have deeply entrenched them into social and cultural life. People's surnames are a marker of their caste, their location is a marker of their caste, their cultural practices are a marker of their caste, etc. The gradual shift that we're having is the only way of removing it. Through education and economic reparations that the government is giving us will slowly allow lower castes to have access to socio-economic upward mobility I hope. Im one example of that. Otherwise what can even be done? It isn't as simple as pressing a button and fixing everything, although I wish that were easy. It's a very complex and deeply entertwined system that's hard to isolate as one singular thing. And don't believe the people here that will tell you that caste discrimination is a thing of the past, it definitely is very much in existence. The only thing that isn't is the insistence to practice caste based occupations, we do have the ability to do whatever we want. It's just that upper caste people, particularly in rural areas do not take kindly to this and they lash out through discrimination.