This is one of those things that Apple is doing now and has never (at least as far as I remember) done before. This is a survey of users of MacBook Pro with Retina display in which asks them about using the headphone jack. In addition, the survey also asks about the rest of the ports of this MacBok Pro.
The truth is that seeing where Apple is moving with its iPhone 7 and 7 Plus, with removing the 3,5mm jack We can only wait a little longer to see how it disappears in the rest of Apple devices and the rest of the brands.
It is possible that during this month of October the Cupertino company will present us with the expected and it seems to be that quite a modified MacBook Pro, but this time around we don't think they'll remove the headphone port if they actually do the survey now. This is a process that would begin to be seen in the next generation of Macs and possibly begin with MacBook Pros with Retina displays.
Another detail is to see if they really pay attention or not to what users respond, since we will never know the official answer to the survey. What is clear is that the step made with the new iPhone models would not be second as if it seems to have happened with the USB type C of the 12-inch MacBook, this connector could begin to be used in the MacBook Pro that present in October, but they have not generalized it in the rest of the brand's idevice. The elimination of the 3,5mm jack does seem to be something that will affect all Apple products in the not too distant future.
And you, do you use the headphone port on your Mac?
I have never used it normally for Bluetooth
By the way, if there is no GPS on the Apple Watch, why with Watch os3 when you start using workouts it asks your permission to use the location of your watch?