Goten as an adult is such an interesting topic because we've seen so little of him post-'Dragon Ball Z'. In the original series, he was this bubbly, energetic kid with untapped potential, almost like a mini-Goku but without the same drive. As an adult in 'Dragon Ball Super', he feels... sidelined? Like, he’s still strong, but he doesn’t get the spotlight much. The biggest shift is his personality—less reckless, more grounded, almost like he’s matured into a quieter version of himself. It’s a shame because I always wanted to see him develop his own fighting style instead of just copying Goku.
That said, the glimpses we get of him in 'Super' show he’s still close to Trunks, and their dynamic hasn’t changed much. They’re still goofing around, but it’s less about training and more about everyday life. I wish Toriyama had explored his relationship with Pan or given him a bigger role in the Galactic Patrol stuff. Maybe in future arcs? Fingers crossed.