Ds speaks brilliantly, lots of vocabulary, grammar is ace, well on schedule in pretty much every area. Except he drops his 's' in many sentences, he can say it, as he will use it if at the end of a word, but if at the beginning, or often middle he will substitute, or miss it out completely, for example he will say 'broomdick' for broomstick, or 'doddige' for sausage. He does it with every word that starts with 's'. and we find we are now automatically adding an 's' if the word does not make sense.
He is 2yrs 2 months. Is this normal for age? I am unsure as dd did not do this.