MIL never thought she'd have grandkids due to.my DH being lifelong batchelor but we did and she has 3; DD15, DS12 & DS10.
She never buys them anything or gives them even few pounds when they visit but is very comfortably off and currently having very extensive improvements to her house (which we have to constantly listen to hear her moaning about, mess, poor workmanship, not turning up when should yadda, yadda).
My parents on the other hand, have very little but are so kind and bring their favourite treats and contribute to trips, little luxuries, pocket money etc.
AIBU to be bit miffed with MIL?
She is from a generation when things were easier too, free higher education, good pension at very early age etc.
I know it's her money but can't help feeling she is being selfish and little treats time to time would show she cares, understands them & knows what they like/ need.