Come on, the text is pretty easy on the eye, like a neat hand-print; also, this makes the text look less "formal" (indeed, I have noticed that the way I feel about a text sometimes depends on the style or format it is presented in).

https://www.brynmawr.edu/cs/resources/beauty-of-programming A non Comic Sans version

I think it fits with his current phase of wanting to explore his human side.

I had no idea Comic Sans had ligatures (see the top of page 2 for the fi)

Maybe it’s supposed to be ironic given the title.

Yesss!! What the hell! Comic sans!!