The adoption stuff annoys me too. I had a gal get pregnant by accident and use Inges bush to put her baby up for adoption. Her mother adopted the baby by calling the social worker and that's no big deal. But Pepermint (the birth mother) still remembers giving birth. Therefore it is highly annoying that she can interact with her own child as if she has no idea who she is. I fixed memories with simpe and family ties with the InSim so it's not like I don't have workarounds but still.
I think when a family has their child taken by the social worker (like another family in my hood) they should "cry softly" when they see them after that. Or even just think of them and cry. Same for the kid if it was older than toddler stage when it was taken. But no. Instead they cry for a minute when the kid is leaving and then imediately go to play the piano or goof off like they are happy as larks.