Just by personal experience, I have known adopted kids, like I posted earlier, they considered their true ( or real) parents those who raised them, because they provided 'real' presence, and when they met their bioligical parents later in their life, it is an acquaintance, if it is good reunion, then they are glad they have met them, if the reunion is bad, then they disowned them, they don't want to do anything with them.
Anyways, maybe it is repetitive.
Just to post again, the endor scene has emotionnal impact in my book. but then again to each his own.