Why the injunction against sudras studing the Vedas?

• For understanding the meaning of shastras, one must have a well-cultivated moral sensibility and experience in the practise of their truths.
• The injunction against sudras studing the vedas is not altogther unjustified.
• A sudra, in other words, a person without moral education, with out sense and without knoledge, would completely misread the shastras.
• No person, even if grown up in age, is qualified to understand difficult problems in algebra without preparqation.