Our 12 year old DC is very quiet around pretty much everyone other than closest friends (about 5 of them). Even around DH and I, conversation is 95% functional (e.g. "What are we doing at the weekend/ can I go to the park?" etc.
They weren't always like this and is does come across as introverted/rude. Also, I feel sad that there is no casual chat and many car journeys etc are in silence and we get shortest possible answer with mo effort to engage back.
We have tried to talk about it but they said they just don't see the point -almost as though they don't understand how important conversation/ chit chat etc is to building relationships /allowing conversations to lead to something more meaningful? This makes me really sad and I worry that we'very failed him in sone way?