Scriptures say that our left hand is not to be used for eating, drinking and puja rituals like feeding idols. Some cultures say its bad to eat, drink or do auspicious things by using the left hand. Some take the opposite view.
But I recently heard a child who is a self-proclaimed online Guru claim that he read himself in the Mahabharata and Bhavishya Purana that left-handed people are inherently evil natured. He forgot where this is mentioned. Can anyone cite a shloka or translation from any scripture which says something to the effect of:
Left-handed people are impure and wicked by their very birth... No left-handed man can become a brahmin or rishi... Left-handedness is a brain defect.
Or is it a fabricated myth?