Premarital sex ban

At first, I wanted to write about benefits about premarital sex, but I realised very few people truly believe premarital sex is right, they just do it for impulse and curiousity. Then they regret it. But if there is such a consensus, why isn't the government banning it?
The biggest argument that is stopping a ban of premarital sex in liberal democracies today is the fact that people have freedom of choice and that if they want to engage in sexual acts, they should know the consequences, accept it and the government should not intervene. In fact if the government intervenes, the people may feel their rights infringed and may rebel even more, since it is impossible to suppress curiousity, which drives premarital sex.
But then again, if the government does not ban it, is it right? That is a weird question as many people view the government as a moral beacon and model. The message it sends when it does not ban premarital sex seems to lean towards the advocation of it. Yet, if we take a step back and look at the numeroues health campaigns, sex education classes that the government has sponsored, we ask ourselves, maybe even the government is against such acts. The thing is, the government cannot make a firm decision on whether or not this is right or wrong because society has evolved so much that the current day trend is as influential as religion, thus, if any law were to be passed, we would disatisfy the people and the trend.
So the government is hindered in deciding what is right or wrong because it is accountable to the people. They have left premarital sex in a very debatable grey area. Thus, it is up to you to decide. Do you want to have premarital sex? Are you ready for it? Do you want to follow the crowd? Ultimately, no one can decide for you, only yourself.