Big Nate Theorists: Case 3, Mythbusting

For the third BN Theorists, I'd like to do some myth busting.

So if you have any theories ABOUT BIG NATE, then please feel free to add it. Please only add the theory and the hypothesis, and don't add any explanations, thanks.

Myths
Why does Nate try and fail?

Why doesn't Mrs. Godfrey give Nate any chances? Did something bad happen to Mrs godfrey in the past and she doesn’t want it to happen again?

Why does Nate hate egg salad and figure skating?

What developed Nate’s Cat phobia?

What is with Nate’s hair?

Why does Nate never age?

Why does Mr Rosa give Nate all of his private info.

Why does Pickles play chess well against Nate??