The majority of people do need formal instruction in phonics and grammar to help them along if they are to become fluent and very competent because they don't naturally pick up these things on their own. That means teachers can point to the natural readers and those who naturally pick up the grammar as evidence that those skills are not necessary to
write my essay. You can always, always blame failures on the students and the parents for not trying hard enough or not helping enough as the reason that kids with inadequate instruction in school are not progressing adequately. This accepted reasoning is the basis for so many failures and so many poor educational approaches.