But then I remember one scene in high school. I was talking to a friend who coded in IB American History and asked him how to get started with Python. He said just go to this website and download this tarball. I had no idea what a tarball was and was afraid it contained something bad. So I didn't download it and didn't play with Python until a few years later in college. If I had started playing with Python earlier, my life could be a lot different. I was not a guy back then who made programs on TI-84 calculators; I thought that was magic. I was planning on econ/finance. I used Windows (!) and didn't know anything about what Unix was, and barely knew about OS X.
It's hard to see why some decisions pan out and some don't; if you install a system version of Python how would the general public / PSF know how many people use it? But I don't think that's a good enough reason to remove system installs entirely. I think my younger self would have liked it.