But it does make sense. You probably looked up where you're going before entering the car on your phone. You probably want to hear the same music or podcasts as on you phone. Do you really want the car to have separate internet connection, and login for every app?

Also you need to connect the phone anyway if you want hands free calling.

I agree that devices should work independently. But I believe the fundamental baseline should be open interoperability. Yes, the dishwasher should allow a delayed start from the machine itself. But it should also have secure yet open interoperability so other authorised systems that care about the dishwasher can interact with it. I think there's ultimately a user experience benefit. I'm familiar with my phone, its UI paradigms etc. If I (or my gran) can use the dishwasher through an interface or voice assistant we're already familiar with then that's a win. Especially if the form factor of the device itself makes it challenging to deliver a great and intuitive interface in-situ.

In this regard CarPlay is evidence of success - a sufficiently interoperable car that allows users to bring their own context and ecosystems.

CarPlay is only evidence of failure if your expectation is that the car should provide a comparable ecosystem to Android or iOS - one that must also somehow follow you in your pocket when you leave the car.

You're absolutely right, but I don’t think we'll ever get to a point in which what a car ships is better than what Apple ships. This only gets worse over time when you have a new iPhone and a 10-year-old infotainment system, it's just not possible.

Car automakers are not going to support your infotainment system (for free) even just 5 years down the line.

Even just thinking about the integrations gives me a headache (will my music app work on my car? how do I transfer my trip from Google Maps on my phone to my car?)

So the solution for today and tomorrow is to just stream your entire phone to the car.

I kinda disagree. I want the top of the line map system that goes with me everywhere to follow me into the car. I want to carry my computer around with me and don’t want a different computer in each location.