When it comes to "life style choices" the only person you can control is yourself. It's next to impossible to regulate "sins".
Several decades ago the U.S. government attempted to outlwaw alcohol during the "prohibition area". The end result was there were too many people who were willing to break the law in order to drink. Today purchasing and drinking alcohol is leagal in all 50 states. Gambling another (former sin) has caught on so much that most major cities have casinos in or near them. It's been proven that smoking causes cancer and young people in every generation start up the habit each year. (400,000) people die every year of smoke related diseases
Sex which is a "basic" human and animal urge for that matter doesn't stand a chance of being discouraged or regulated. Trying to find a way to discourage people from having sex is the same as trying to discourage them from eating ice cream or french fries. If the fear of AIDS, STDS, Unwanted pregnancy, or the high cost of divorce for those who are married and cheating won't discourage sexual activity then NOTHING will. This is a battle that can't be won.
"He will win who knows when to fight and when not to fight" - The Art of War by Sun Tzu