There's easy availability, but it requires installing the Apple Developer Tools, which can either be done at install time (by not by default) or by downloading

There's easy availability, but it requires installing the Apple Developer Tools, which can either be done at install time (by not by default) or by downloading them from apple. So even though python is installed by default a C compiler might not be, and if a beginner is trying to use python for the first time they might be daunted by having downloading several gigabytes of developer tooling to install one python package.