If Vinnie needs some distractions Hilda might be really good for a distraction. They can plant stuff or do something else outside, and somehow Vinnie looks immaculate and Hilda is caked in mud. Or if he wants to point-blank unload his issues on someone, Kyle's canon is all about that kind of thing.

Zero could maybe use a sport. Mario's all over the sports, that's the best way to meet more people. Alternatively, the best hobby is DOING GOOD DEEDS, Zero can go be a boy scout with Shinta?