Been with my dh for 3 years now.
He has one dc from previous marriage and I have 3 dc.
Last year at Xmas we went to his parents with his dc. His dc had £100 and not even a card for mine.
This year we all went together. My sc got £100 and my kids totally ignored again.
I don't expect them to have money but at least a card would have been nice.
My mum on the other hand gets gifts for my sc for day, Xmas and Easter.
It really hurts that my kids get ignored and treated like they don't even exist.