This is sort of tangential to the other issues being discussed (which I agree are important), but compared to the era of software distributed on physical media, today "Xcode is not installed by default" does not mean that much given that installing it only takes a few clicks in the App Store. Yeah, it's a few gigs to download, but Apple has always been forward-looking, and on a fast internet connection that's only five minutes' wait.

Not to mention that, also unlike then, it's easy to access tutorials and videos galore on the Internet to show you how to get started with development.