Thank you for your thoughts. Child's background is very important when you work with them! Especially for teacher. From my experience: teacher calls adoptive parents that their child (in new school) is "rude" and please do something with it.
Noone cares that the child is adopted, after long adoption process ... after being taken from family. School wants kid to be nice. Just nice.
Thank you for you point of you. We need more people like you @rionpistorius :)