DS is 6, in Year 2. He talks fine in most ways except when he says the letter 'S', he uses his tongue at the front of his mouth, poking out between his teeth, so it sounds like a 'th' sound. Is this a lisp?
If so, can it be corrected, or is that just the way he is? Do you think he will get teased about it as he gets older if it doesn't change
?
I have tried to get him to say the sound without using his tongue - he says he can't. He aalso sucks his thumb