Board Thread:Boruto: Naruto the Movie/@comment-26010916-20150806143152/@comment-25632268-20150811192551

GoldLiger wrote: Well to Naruto and Boruto we know that they never known Hima to awaken the Byakugan. Even Hinata doesn't know about this.

Exactly, Hinata's reaction after finding her husband is a clear indication she has no idea Himawari can target chakra points. And I believe she is the parent that spends most of time with children.