What does that mean? What would it mean if I said "Unless it has a physical failure, your car always just works"?
I've had lots of problems with wired headphones and jacks. More often it's the headphone that's the problem, but I've have several issues with the jacks themselves. They can get stuff jammed into them, but they can also just not work properly. I don't know why exactly, but I've had it happen.
It means you can have two perfectly functional wireless devices and not be able to make them communicate at all, but it won't happen with an analog wired connection.
The big pro is that it's fully portable and gives you a freedom of movement that is difficult to match. Most of the cons are associated with poor care (corrosion, stuff jammed in there) or poor quality devices (which is a "con" shared with wireless).
There are real cons as well. Wireless devices are 5x more expensive than a wired device of equivalent quality, is susceptible to a variety of forms of interference, introduces pairing problems particularly as devices age (ie. A 6-10 year capital asset like a 2014 Honda Odyessy may randomly not work with your iPhone Xs), higher latency, unpredictable latency with different endpoints, etc.
The rage issue here is that by taking away the jack, your profoundly reduce the flexibility of the device. The only meaningful benefit is to drive revenue for Apple's secret weapon -- high margin accessories. Those $30 earbuds have a cost that is probably <$3.
> The only meaningful benefit is to drive revenue for Apple's secret weapon -- high margin accessories. Those $30 earbuds have a cost that is probably <$3.
As I've argued in many other places in thread, removing the headphone jack will speed the adoption and price-reduction in wireless headphones. While this is not a pro for a lot of people, it is for others, including myself.
I don't agree with the argument that the only thing is to drive revenue to Apple, as there are many different brands of wireless headphones, just as there are with wired headphones. I own non-apple bluetooth headphones.
Apple doesn't need to own the whole wireless vertical, but they are adept at cross selling within the product line.