My cousin and his girlfriend are having a baby (due late May). His girlfriend has a daughter (aged 2) from a previous relationship. I don't have much to do with my cousin, not because I don't like him, we're just not close.
At family occasions he never bothers to come, even to our Grandma's birthday which is literally a 25 minute drive away. And for that reason I've only met his girlfriend a handful of times.
I also know that our Grandmother gave them a a huge bag of Christmas presents for the three of them and she never got so much as a thank you.
My mum rang me tonight to ask me what I was buying for the new baby, and then she asked what I was buying the little girl too. When I said I wasn't buying her anything my mum said basically that it was rude and unfair to buy just for the baby as she will feel excluded.
Now I have no problem buying a card and present for the baby, it would be awful to not at least acknowledge that they've had a baby. But aibu to think why the heck should I buy for a girl who I have met maybe 3 times and really isn't anything to do with me?