It reminds me of Looper a bit. Which is one of my favorite movies
Killmonger grew up without his father, after finding him dead in their house, and his mother was in prison. He grew up an orphan in Oakland during the 90s knowing he came from a powerful country but they left him out in the cold. T’Chaka was very fukked up for that. That’s trauma.
Toussaint/T’Challa will never grow up like that. He’ll grow up with his mom, his aunt, his culture through them and knowing he’s loved. Nakia can also take him back to Wakanda the moment he’s a little older (15-16ish). It’s not the same.