When a man is young, there is some luster, attractive luster. This is nature's gift. A woman becomes . . . a girl becomes full of youth, lustrous. A man, a boy becomes . . . attraction. Without attraction, there cannot be sex. And without sex, there will be stopped of generation. So by nature these things are there.
So śāstra makes them adjustments. The natural attractions are there, but they know what is the meaning of this attraction. Therefore, according to Vedic rules, the boy is selected by the father, the girl is selected by the father. They are given in marriage, so that that natural attraction can be utilized for generating good population, not prostitution. You see? Therefore early marriage, selection by the parent, these are recommended. That is called marriage. Now the boys and girls are loitering in the street, and they are mixing freely and having all business. And then one day say: "All right, I agree. You are my wife. You are my husband." Svīkāra eva ca udvāhe.
These are the signs of Kali-yuga. It is simply deteriorating. The human civilization is deteriorating. In the name of advancement of civilization they are becoming animals simply. And the more the age of Kali-yuga will increase, these things will also increase more and more, more and more. Later on, you won't get foodstuff. You will be obliged to kill some animal and eat. Now you have got alternative.
But we are becoming very much fond of animals, so Kṛṣṇa will or nature will make some arrangement that you cannot eat except animals. That day will come. You cannot eat, even if you do not like. Nobody will say: "I don't like." Everyone will like. So there will be no supply of wheat, no supply of rice, no supply of sugar, no supply of fruit. These things will be stopped. No supply of milk. These are stated. You won't get.