Why is this Fourth of July special to Max?

Readers should look to the first few paragraphs of chapter six for this answer. It is not too clear why Max likes the Fourth of July so much, but he does come flat out and tell his readers "I love the Fourth." The first paragraph of the chapter includes the most details about perhaps why Max likes this particular holiday. He tells readers that he thinks the holiday is "real edgy." He clarifies that the holiday itself seems like an excuse to just do whatever. Everybody is having a cookout, things are being blown up with firecrackers, and kids get to run around with little to no supervision whatsoever. For some reason, Max comments twice on the fact that dads are getting drunk and acting numb, and that seems to be a good thing in Max's mind. Perhaps that is why he likes the holiday. Readers will come to learn that Max's dad is a terrible person, but Max doesn't remember too much about him. Perhaps Max remembers somewhere in his subconscious that the Fourth of July would always see his dad so drunk and numb that it was tolerable to be around him.