The parent was making the point that generally Americans refer to dates such as "May 2nd", "April 14th".

But one of their biggest holidays is explicitly called "4th of July", changing the ordering.

And a proper name is not good evidence of normal usage. "Christmas" is normal use in an older, Catholic method of identifying calendar dates. Americans don't use that method; most couldn't if they wanted to. But Christmas itself is still identified that way for historical reasons -- the word has gone from being an example of talking about the calendar to being an example of a proper name.

"4th of July" is not a method that Americans couldn't use if they wanted to, but it is an ossified usage that doesn't reflect how Americans generally refer to dates. Like Christmas, it is a proper name of limited evidentiary value.

Huh, where I'm from the 24th of December is Christmas. The 25th is the day after Christmas.

Really? Where are you from?

This might help explain how Santa delivers all those presents in "one night".

Possibly it's the difference between being an atheist and a catholic, since I faintly remember my catholic friends receiving presents on the morning of the 25th, while I would receive them on the evening of the 24th.

Opening presents on Christmas Eve is a pretty common tradition.

Calling Christmas Eve "Christmas" is not common at all.

Interesting. Are you from Canada?

I'm from Europe, but not from an English speaking country.