Ds turned 4 in may and started reception in September. He's always had a few speech foibles but I'm starting to wonder if they are going to affect his development in school- he can't say his Rs which I know if fairly normal but he also uses "d" to replace "th", this came more noticeable recently when it came to reading as he became quite self conscious that he was saying "duh" instead of "the", a word which obviously comes up a lot! I want him to be confident when reading to people but also don't know if this is just something that will correct itself in time.
Really appreciate any similar experiences.