My first son joined our family when he was 16 months old. My then husband and I had a biological daughter who was five years old. We changed our son's name so that he would have an African name like we do. As a way of familiarizing him with his new name and who we were, I sang "My name is Mommy, his name is Daddy, your sister's name is ____, and your name is ____!! [his name was said with more emphasis and excitement than the preceding names}

My second son joined our family when he was 3 and my first son 3 1/2. We also changed his name for the same reason. We sang the same "Who are we" song with my 2nd son. Because he had been with the same foster mother since his birth, his adjustment was much more difficult than the adjustment was for my first son. Initially, I referred to myself as Mama Azizi, but because his new siblings called me "mommy",
and called Daddy "daddy", he quickly did also.

Because my third son to join us was 10 years old when he came, I didn't change his name. However, as an older teenager, he selected an Africanized name, and told me that he felt left out because all the other members of the family had an African or Afro-centric name.
So, perhaps it might be best with older children to ask them if they want their name changed or not.

Btw, Robyn, rwith regard to the name "Kali", are you making an assumption that many children will associate that name with the Indian goddess? I don't think that everyone will do that, especially children

Hope some of this helps,

Azizi