DD was 12 in November, so not quite a teen yet, but I feel this behaviour is the start of the teenage phase, and wondered if more experienced parents of teens could help.
DD has always been quite shy / quiet around new people. She has some communication difficulties which are mild but worse when she's nervous or anxious. I barely notice it at home, but it does affect her a bit in big groups or with people she doesn't know.
When she was much younger (toddler and v young child), I'd often speak for her with strangers or distant family that she didn't know, but I've realised over the years, and on advice of SALT to try to let her do it. It's hard though because I know she really finds it very stressful, and so do the people she's speaking to, who just are trying to make conversation.
There have been times in restaurants where I've tried to encourage her to order, where I honestly think she'd have rather not eaten than spoken to a waiter, but she has been getting loads better in the last year or two, and will occasionally surprise me by being really chatty with people she doesn't know well. At the end of term she volunteered to do a reading at the school carol concert, and she did brilliantly so I really thought she'd turned a corner.
All this week though with family visits and social events she's been worse than ever. She'll happily sit not speaking to anyone, and as soon as anyone from wider family starts to chat (the usual smalltalk - what did you get for Christmas, that sort of thing) She'd just visibly squirm, maybe manage a "don't know" and then clam up.
On Boxing Day I ended up getting really cross with her. It's so rude. She could barely manage a thank you as we were leaving. I know the family are judging her. Their teens are all chatty, outgoing and will talk for ages about what they're up to etc.
One of the people trying to talk to her was a 14yo who's in year 9, who she's seen twice a year all her life. It's not like they are all strangers or much older.
This feels more like that she can't be bothered to make the effort. As we were leaving I took her to one side and whispered that if I didn't hear her say thank you and goodbye, and if she didn't make eye contact as she said it, she would have her phone removed for a day. she managed it, but I really feel at 12 that she should be able to manage social niceties like this without threats.
I don't know if I'm being unfair making her talk to them because I feel her rudeness reflects on me, or if I should continue to force her because she needs to get used to it.