No More Headphone Jack
Apple did not include a Headphone Jack adapter with the iPhone XS Max
When people open the box of the iPhone XS Max, one of the things that were missing was a jack adapter for the headphone jack. Apple had removed the audio 3.5 mm port since the iPhone 8, but they included a jack adapter so people could connect their "legacy" headphones to the lighting port.
I say "legacy" because there's still a lot of manufactures that are producing quality headphones and accessories using the 3.5 mm port. Not everyone believes or trust bluetooth as a good audio source.
Included in the box is a charging cable, USB wall jack, earbuds which connect to the lighting port and the iPhone XS Max.
For some reason someone Apple feels they need to cut back on expenses especially when someone is spending $1,200 for their smartphone. If you want the jack adapter - that's extra. Just like a case, smartphone screen cover and extra cables for work and the car.
Personal Collection of iPhones showing the audio port in all the old iPhones.(Taken with my Olympus XZ-2)
Apple Headphone Jack Solution is Cheap
A Lightning to 3.5 mm Headphone Jack adapter will only set you back $9 at the Apple Store or $8.60 on Amazon with free shipping with Prime (Price may vary).
So getting one won't break the bank. But it's the principle of it. If someone is willing to spend $1,200 on a smartphone device, at least include it in the box.
There's plenty of space in the box for the jack adapter, so that's not a valid excuse.
Not the First Time Apple Done this
When the iMac and MacBook Pro came out without a DVD drive, Apple promoted that if users needed a drive, they could purchase a USB DVD drive for $99.
One More Thing
The EarPods with Lightning Connector that's in the box, cost $29 at the Apple Store. I am pretty sure that most people will use the Headphone Jack adapter than Apple's headphones.