Long story but to make it as short as possible
DH one of 2 children, both have 1 DC each, so there is our DN and our DC as the 2 grandchildren. 1 year apart, the same sex.
Our DC has had one visit since they were born 6 months ago for 4 hours. We live 100 miles away from them.
Our DN gets 6x weeks spent with him 3-4 times a year. They live 10k miles away from them. As I said, 1 year older than ours.
In laws never ask after our child from one month to the next.
All of a sudden they have asked to see our DC in December - as they are coming back this way to see their friends. Feels a bit like a tick box exercise and considering the little effort, time and energy they give to our DC over their other DGC. I feel like saying no. AIBU?