Imagine you are reading a book and there is a word, or a number of words, in the book which are not known in your spoken vocabulary.
There are no picture cues and although the context of the sentence/text gives you an idea of the possible meaning - in order to bring the new word/s into your spoken language, you do need to have a 'pronunciation' for it to fully adopt the new word/s to increase your vocabulary.
You could be any age, but ultimately you need to be able to 'decode' the word/s and come up with at least an approximate pronunciation.
The alphabetic code is essential for this. Even if you think your children do not need phonics, or have managed very well without phonics, you may not have considered the full implications.
Your children may have deduced, or ferreted out (Jim Rose's words) the alphabetic code knowledge more than any teacher or parent realises, or your child may be getting by in reading supported by good oral vocabulary.
Ultimately, however, everyone needs a good understanding of the alphabetic code for reading and for spelling - and this helps the reader/writer to be attentive to the details in the printed word.
Yes, all children are 'different' with different learning capacities, different language experiences - but they all benefit from good familiarity with the alphabetic code.
I suggest there is a hidden epidemic amongst our pupil population of young people who can 'read' to all intents and purposes - but many can decode new words and longer, more challenging words - well enough.
Please don't be against phonics because your child is a 'good reader' - many of you acknowledge, at least, that phonics will help spelling - it really is about being attentive to the detail of the printed word whether for reading or spelling.
There is many an infant teacher, or parent, who is unaware of the longer term consequences of neglect of phonics teaching/learning.
However, I suggest that the level of phonics teaching in English-speaking countries is not high-enough or rigorous enough in many cases.
The Year One phonics screening check which gets such a bad press is a very simple way for all of us to get an indication of 'teaching effectiveness' - and results over the past three years are showing that there is a big discrepancy in teaching effectiveness between schools and regions - and that teachers can become more effective when their minds are sharpened regarding the need to be effective.
The Year One phonics screening check is not demanding - and there has to be a good reason why the vast majority of children are not reaching or exceeding the benchmark.
There are schools demonstrating that even with a cross-section of children (all individual), they can get 90% to 100% of their children to the point of accurate decoding.
It is a fallacy to suggest that the 'better readers' do not get the nonsense-words correct because they are 'better readers' or they 'don't need phonics' or because they are 'trying to make sense of' the words.
The 'better readers' may well get through reading books of any description really well at this stage - but they should also be able to decode simple words that are not in their spoken vocabularies - which is something that is always required when reading books in one's lifetime - including for the adults as I said earlier.