This is DM who we are away with on holiday for a few days. We all go out for dinner/lunch together and she will have her phone up in front of her sitting reading it while we're waiting for our food etc in a restaurant. No one else at the table is doing this.
I've tried saying we think it's rude in our house and have a rule not to do this/subsequently asking what she's reading to try and get her to at least chat if she's just sitting there but she doesn't think it's a problem. DF thinks we're making a fuss about nothing. AIBU to think it's really rude? What else can I say to try and get her to put it away for meals during this trip away?!