If we have a girl at home who has attained puberty, some one should come and ask for alliance. Otherwise the girl will have to remain a virgin only. But in a Brahmin's house if there is a girl who has attained puberty the Brahmin will go from door to door seeking a bridegroom. This is the difference between the Aryan and the Dravidian customs.
Veeramani, Collected Works of Periyar, p. 517. - Aryanism