Can I just ask a question about how your parents treat your step kids?
My parents adore my step kids but don't get much time with them. No ones fault but thats just the way it works with peoples job patterns and access times. My DP has never made much effort to help my parents get to know his kids and I've given up trying to push it.
My view is that although they are not technically their grandchildren, they are their step grandchildren and I think it would be nice for my parents to feel like they are part of the family. I think it would also make me feel part of the family.
What do you think?