I have a DS (2) and 2 DSC (8 and 10).
Every Christmas my two best friends and I exchange Christmas presents for the kids. They have one child each. Before I had my DS, I would buy for their children and without ever asking them too or any expectations, my friends would gift a small token present for my DSC which was always very appreciated as nice for them to feel included.
Since my DS has arrived though, they now only give a gift for him and not DSC.
AIBU for feeling upset by this? It feels like they see my DSC as 'less' than my DS. I've considered that cost might be a factor, however, they are both pregnant with their second so there will be two more children that I will buy for next year and would never dream of not, even if just a token present to show I've thought of them and their sibling.