God does forbid it. Our lives do not belong to us; they belong to God, and He has every right to tell us how to run them. I realize that in our secular culture the only gods allowed are Reason and Liberty, but nevertheless these are false gods; the narcissistic illusion of reason and the sensual slavery of liberty only entrap men -- they do not exalt him.
The liberal and atheistic idea of unlimited personal freedom is alien to truly conservative, Judeo-Christian culture. As a Christian and a conservative, I worship the only and true God, not the false goddess of Liberty, and I support the preservation and promotion of our culture's Judeo-Christian ethical traditions, not their abolition. The sort of "liberty" that advocates the freedom of consenting adults to do whatever they wish is and has always been a lie. Any attempt by humans to pridefully "run their own lives" on their own terms will end in failure, misery, and death, because happiness, success, and life comes only from humbling oneself and acknowledging the Fatherhood and authority of God.
The idea that we as humans are competent to "run our own lives" is what got humanity in this mess to begin with.Instead of trying to be God, we ought to obey the God That Is.