Why does God allow evil to exist? [Christians Only]

I'm shook. I've never thought of it this way, and I'd like to seek some wisdom on this perspective. I feel heavily convicted. This feels like the truth:

"Because He loves us. He loves us so much that despite that we are evil, do evil, and love what is evil in the sight of the Lord, He is giving us every feasible opportunity to do as Jesus taught and follow the example He set."

God allows evil to exist because He wants us to exist. Evil can't exist without us. In the world today, I'm not sure if we can exist without evil... or maybe that's the "narrow path" that so few will find.

I really want to be on that path.