Even Sasuke wanted attention from his father, but Sasuke always had someone to strive for, Itachi. Who he wanted to surpass or at least catch up to so that he could be acknowledged by his father.
Unlike Sasuke, Boruto acts out trying to get his father's attention in the opposite form. Sasuke achieved perfect grades, passed every test, and performed to his highest in every extra curricular activity in shinobi work just to be noticed by his father. Boruto may be in the same boat as Sasuke in the sense of being early prodigies, but Boruto has no one to catch up to. He probably has the best grades in his class, unmatched in skill, and probably does not lose very often (when it does not come to his father).
I think people judge too harshly on his behavior because he is only a kid, and the kids of this generation are not really facing much. Sarada is literally the only one with actual family problems, and everyone else is borderline standard revolutionized American kids with a twist. He is only about twelve years old, and he does not really complain at all like people say. The only thing he really does is cause problems for his father by drawing on the Hokage monument, but he only does that to gain a reaction from Naruto so that they can spend some quality time together.
Unlike Sasuke, Sasuke didn't want to spend time with his father, he wanted his father to notice him because there was already a son who casted a shadow. Outside of just pranks, the kid is pretty normal to me. He is not rude at all, not to anyone. He thanked Sarada after she helped him escape his shadow clone father, and he reasonably helped her too when she plead for the Bento tnj crap. He does not come across as this rude, know-it-all, complaining all the time child. What he does rub off is, a child who has a easy life, but wastes it on trying to get his father's attention.
I mean can we blame him, though? I guess you could say Boruto does not really have a plan for himself, he is still too immature to decided unlike Naruto who wanted to become Hokage, but he is still young too. I feel like he has potential to be a great character, and to do something with his life that extends Naruto and his legacy. I can only hope Kishimoto will do something interesting with him.
