That is the tricky aspect of it, you might think you wouldn't feel the need to be angry or search for your biological parents since you are already being cared for but humans curiosity is something we can't quantify with words. That is why i said until a person finds his/herself in that position you can really predict what your reaction will be.
RE: ғᴀᴍɪʟʏ ᴄʀɪsɪs: ᴄᴏɴᴛᴇᴍᴘʟᴀᴛɪɴɢ ᴏɴ ᴍᴀᴛᴛᴇʀs ᴏғ ᴀᴅᴏᴘᴛɪᴏɴ