As someone who was adopted I would say that, depending on the circumstances of giving up a child, there are real and tangible effects on that child’s life and personality, it can be traumatic. I think ultimately biological connection matters and can’t just be cut off like it didn’t happen. Children need to know what they come, adopted children often feel a sense of not belonging and being lost. I think they need to have the opportunity to explore that at the right time and also be aware of its significance. That comes with potential issues in the family dynamics. That’s just my experience though, it wasn’t handled well and I think often it isn’t but things may have changed with the advice you get.