I don't understand why people insist on using the possessive form of a proper noun following the preposition, "of."

I hate minimal-skill tests. I over-think test questions so much that I get them "incorrect" when technically I am correct.

Happy birthday to Hitler and the Columbine massacre.

And I don't smoke.

When two people accidentally converge paths while walking in the hallway, why do some insist on moving to the left when the social protocol is to move to the right?

Has anyone really been far even as decided to use even go want to do look more like?