I feel like this might have been explained somewhere along the lines and I forgot but I'm curious for these reasons.
1.Minato is a Namikaze and traditionally the japanese children take the last name of the father.
2.He doesn't even have the uzumaki clan signature red hair.
Is it because he's a jinjuriki that he has the uzumaki last name? Since his mom was going to be a jinjuriki and Mito was the last one.
What do you think?