People associate this mistaken belief with their early school days. One conjecture is that it results from young children being taught to avoid simple sentences starting with "and" and are encouraged to use more complex structures with subordinating conjunctions. In the words of Bryan A. Garner, the "widespread belief ... that it is an error to begin a sentence with a conjunction such as "and", "but", or "so" has no historical or grammatical foundation", and good writers have frequently started sentences with conjunctions.