People can usually make independent decisions, stand up for themselves and make judgemental people stupid, when they are truly independent in the sense they can face all consequences by themselves. But how many young ones can do that in case things go wrong. Hypothyetical possibilities are one thing making practical and responsible decisions is one thing. Is sex with the partner right away without full commitment by marrying is worth it or not is the question. BTW, extra marital affairs are not illegal .People are free to do so. People with true freedom may enter into open marriages. But many feel it is morally wrong, and think the other partner deserves apologies. Legally speaking the other partner has no right to judge either (only right is to divorce)but many think the other partner has every right to know, judge or warn such actions will be punished. What of rights of parents who support(not just financially) these yougsters more than spouses in many cases(working women). I am not trying to convince anyone of anything but just loudly thinking from both sides. Also Is this really about freedom and women's rights. Also many quote a few temples and Kamasutra as signs of a society with sexual freedom. There are plenty other literature that tells otherwise. May be not that simple.