It's just one more syllable, or one word(no s, because it's not plural). People prefer to say dou ble u dou ble u dou ble u instead of world wide web, and that's even more syllables. It's also arranged in a neat way, from day to month to year.

it's only the 4th of July because it's a holiday preceding July 5th and following July third.

That's the issue i guess, you guys jump from one format to another and then back and that's considered normal🤷