Board Thread:Theories and Speculation/@comment-31074250-20170318090411/@comment-27089028-20170413110455

I think he's just a late bloomer but he's got enough of his mother in him to awaken the Byakugan properly. As for the curse mark, I can see the power overwhelming him at some point in the story but I'm sure with the help of his allies and family he can reign its power in before the confrontation with Kawaki arrives.