It was the advantage Boruto has that Naruto never had. To add to that, Sasuke is also training Boruto. Having two of the best shinobis training him, it is no doubt that Boruto will be stronger than Naruto.

Will Boruto be stronger than Naruto?

4 Won't Surpass: Naruto Has Kurama

Boruto does not have a powerful tailed beast inside of him. This is a source of power unique to the jinchuriki and Boruto is not one. Without Boruto having that power, Naruto can remain stronger than his son.

Who is powerful Naruto or Boruto?

On paper, Boruto is superior to his father. But in actual practice, experience and frame of mind also have a role to play, and that's where Naruto comes out way ahead. He has not only fought far more battles, but also faced far more difficulties in his childhood— all of which has made him mentally stronger.