I have read the following claims regarding Smritis countless times :
... what scriptures also say. They say that you should keep the Desha (country or place) and the Kaala (time) in mind when you apply knowledge or a particular scripture.
It had relevance at that time but they are no longer relevant.
Firstly the Law Book known as Manusmriti or Manvadharma Shastra was not the work of a single author, there are too many inconsistencies and contradictions.
It is “idealistic’ in that it was never a practical text, nor was it every actually applied in any kingdom in ancient India. Laws in India were primarily caste-based - each and every caste was autonomous and created their own laws which governed them. It was only major disputes which were brought to the royal court. The Kings were primarily interested in collecting taxes and left the daily legalities to the caste panchayats and their self-governance.
There are a large number of different Law Books (Smritis) produced by different Law-givers and used in the many countries and districts of India, many of them contradict each other.
These claims are never supported by any verse or studies. Are these true ?