My LO is almost 3 and has always pronounced things very well, we've never had to ask them to repeat themselves.
In the last week or so they've started replacing all "s" sounds with "sh" - housh for house, shophie for sophie, what'sh that for what's that etc.
This morning it is worse than ever they do it for every word!
Is this normal and something they'll eventually get bored of, should we ignore or correct? Or should we worry ? It has taken us by surprise and we're now sometimes struggling to understand them!