Goku was able to unlock SSJ for the first time and not Vegeta because? you will have your answer when ur answer it.He stopped working hard since the Namek arc. His SSJ2 was superior to Vegeta’s SSJ2 for absolutely no reason. Goku even tells Vegeta that Vegeta had been working harder than Goku. SSJ3 was handed to him on a platter. Ultra Instinct came out of nowhere. There is absolutely no reason why Vegeta couldn’t do Ultra Instinct.
Also Vegeta at no point was stronger than Goku. Vegeta always tried to cheat to surpass him. Their first fight- Vegeta transformed into an ape to beat him. Then when the Androids arrived, he wasn’t actually stronger as some characters had stated. Goku;s heart disease4 was crippling him. The only time he was stronger was when Vegeta unlocked the imperfect SSJ on his first visit to the time chamber. But the comparison is unfair as Goku hadn’t gotten the chance to enter yet. Once he did, his mastered ssj was more powerful than Vegeta.’
In DB super, Vegeta is Goku’s cheerleader and Gohan has been reduced to a fodder book nerd.
Im not watching anymore , i dropped the series after DBZ - i watched DB-GT just to see whats going on but i didnt like it as much as DBZ , and another thing why Goku have ultra instinct is the same as why he unlocked SSJ for the first time.
Goku vs Vegeta first battle , Vegeta was actually stronger but like i said Goku pushed him self over his limits and kaioten x10 kamehameha vs gallet gun - Vegeta was still able to fight , Goku didnt. As Goku fighting spirit is greater then Vegeta.
Like i said , im not watching anymore but Goku and Vegeta will always be my favorite among the series and little retard gohan was irrelavent for me ever since