Kalakaaris work on Hetal because she wants best for her son and family to be inclusive and peaceful
Kalakaaris survive kokila because joint family and tradition are important for her... Even if she catches Rashi shecannotdo anything to rashi because koki lives within the boundaries of her decency
Raashi's kalakaaris work because everyone else is normal and decent.
Raashi and she mom are deviant and indecent...
These are two parallel personality types... never converge... Maybe CVs are facing same issues... they keep on throwing kalakaaris at us ... because they don't know what to do next !