One of the consequences of getting older is that you forget what its like to simply not know things.

My two year old son is constantly climbing up stuff and tumbling off it without any regard to the possibility that gravity might be holding him back. Every time he lands hard, he looks at me with tears in his eyes, as though the whole world has betrayed him. If you could just fly by not understand gravity, everyone under the age of six would be levitating constantly.

Although, in Andrew's case, it might be less "getting older" and more "getting repeatedly concussed".

I did it after seeing Hook in the theater

Correct