Eventually, we'd all end up in jail. As silly as this sounds, it is precisely the logic used by some to protect the idea of consensual crimes. Consensual crimes are not without risk, but nothing in life is without risk. We like to think that if we can only keep ourselves and our loved ones safe, non of us will ever die. Obviously, it doesn't work that way.
Life is a sexually transmitted terminal disease.
Sometimes we land on the sunny side of the risk and get the reward. Sometimes we land on the dark side and get the consequences. Such paternalism creates consensual crimes. Consensual crimes are sometimes referred to as victimless crimes. Every scoundrel committing a real crime has declared it a victimless crime, attempting to argue that a crime without physical violence is also a crime without a victim.