Why do people still drive cars daily when bikes exist?

That 360 degree visibility only applies one way, the other drivers won't see you.

When you are on two wheels, you are practically invisible. Drivers can look you straight in the eyes and still cut you off and make turns right in front of you. I say this as somebody who frequently rides both bicycles and motorcycles on roads.

For many people it's just not worth the risk. Of course, better infrastructure would help with this problem, but good luck with that.