Yes. It illustrates, not proves.

Compare:

Grammar as a collection of rules is taught from a very young age, and is merely for signalling and more easily avoiding ambiguous statements in specific contexts. It is also very complex, and extremely hard to acquire and master - which is exactly why, I've been told, it's taught starting at a very young age and all throughout compulsory education, and often well into higher education institutions.

Rationality is taught once you've already learned, mostly the wrong way, all they think anyone needs to know, and it merely serves to improve almost every aspect of personal thought, beliefs and decisions, as well as improve all learning done afterwards. It is also very complex, and extremely hard to acquire and master - which is exactly why, I've been told, it's taught starting very late in any curriculum, and almost never before you've already made it past compulsory education, and often well into higher education institutions.