This may be a continuation of my thread about age-related accountability, but I'm not sure.
It was my DSC birthdays recently. DSS is partially-estranged, and DSD completely, so DH posted gifts to them.
DSS (the younger), thanked DH by phone. DSD (17) didn't acknowledge the gift at all. No text, thank you card, nothing.
So, will DH be reinforcing and validating her rude behaviour if he continues to send gifts/cards in future, or should he keep doing so despite her rudeness?
He's upset, not because he expected a thank you, but because he thought he'd parented her in a way that taught her good manners. He is waiting to see if his parents mention to him whether she has thanked them for the gift they sent her - if not, I'm sure they'll pull her up on it!
Birthday/Xmas cards and gifts is not the only contact he makes with her - he sends texts and emails with links to things he thinks she might be interested in once a week or so, but she never responds, but he doesn't do it for that reason; it's just a way of letting her know he's still there for her.