It just didn't happen--It was all before the foundation of the world.
I make known the end from the beginning, from ancient times, what is still to come. I say, "My purpose will stand, and I will do all that I please." (Isaiah 46:10)
God wants us to know that nothing in life happens by chance or mistake.
The Father have so much love for us that no mistake we make can change his plan he designed for us before the foundation of the world. It doesn't matter what detour our life may take. He would take and use that detour to perfect that plan and purpose he has for us.
His GPS would perfectly direct us back to where we originally needed to be. It is all about the love the Father has for his children that would make him prepare provisions for our mistakes and falls. We must consider our self-privilege for such great love.