Thoughtful stuff a ever. As a TEFL teacher, teaching beginners, I always tried to make sure I was learning a language in a beginners class for the same reasons you outline. Hence I’m not very good at a number of languages 🙂

Phil Race in on his blog argues in a similar vein that “All teaching staff in higher education would be required to be students” and “Everyone would be required to spend some time teaching students and assessing their work”