I was adopted at age 4 1/2.(Maybe a little older) When I came to America I would refuse to speak Russian, and whenever anyone did I would ignore them and walk away. I used to have a Russian person that came to play and speak Russian with me, but she quite because I wasn't cooperating. And my sisters were older and they would speak Russian to me(They were around 6 and 8 1/2) but I would refuse. And my friend has a adopted brother from beloruse who refuses to speak Russian, he doesn't want to. I think he's 3. It's especially true for adopted kids that don't want to speak their native language anymore...