Hey Oak,
Thought I'd chime in here. I am also adopted and although I have never met my birth parents, I have never had the desire to do so. I always felt like they would ask me for money or something haha. I would really like to meet my siblings however. But the way I look at is like I won the lottery because I got to have parents that desperately wanted me as opposed to people who desperately did not. I commend you for adopting children of your own and one day they will feel the same, that they are lucky you and your wife came along and gave them a wonderful life.
JF