So Himawari his younger sister is more mentally mature? No. Himawari is more content because she has Hinata and Boruto also has Hinata but can't relate the same as a boy to his father. I didn't say anything about Naruto enforcing anything on his son, where's that coming from? In the gaiden manga he acted out because his dad wasn't spending time with him and he thought this would be a good way. He wanted his dad to chase him because that meant he was paying attention to him and he got depressed it ended so quick when Naruto used shunsin, Boruto wanted longer even if it was the process leading to his punishment. There's a lyric that fits Boruto and young Naruto perfectly "And some parents only touch they children when a whips brought
That's why bad kids do bad shit, just so they could caught
And get touched, this growing up shit's rough
That's a big part of why were so mixed up"
They seek the attention so badly they'll even take the negative over none at all. Which is exactly how Naruto was, it's exactly how Gaara was and it's how Boruto is until he makes some friends, so until then Naruto should be keeping an eye on him and making sure he doesn't feel the same pain Naruto felt as a child.
Yes, it even stated she was more mature in her character biography for the Movie.
He didn't 'act' out in the Gaiden, in the way you're referencing. Boruto painted the Hokage monument to draw Naruto out so that he can 'play' with him. And a chapter or two later, we see him going to deliver a lunchbox to his father. By the time he reaches the Gate, Naruto is gone and Shikimaru is apologizing for him. Boruto gets angry and walks away.
That's not how I interpreted the scene. When Boruto was hiding from his father, I think he at some point just gave up. He didn't want to play with a clone, but he wanted the real Naruto to be there for him. That's why he hid from him, and I think Naruto knew he was there too.
That's completely wrong though -- Comparing Naruto, and Gaara's situations with Boruto is not really appropriate. Boruto feels neglected by his father, sure. But he has his loving mother, and his sister too. Not to mention he's surrounded by friends who also care for him as he does them.
Just because he wants his father's attention, doesn't mean that he should be aligned with those who actually received negative all their lives. Boruto for the most part was a normal kid who gradually accepted Naruto, until he started changing with his job. For the most part he just wants his father not to miss on important days that involve the family, especially things that involve his sister, and he generally wants Naruto to be the father that he once was.