On a surface level, no.
Without conflict, there is no drama, and without drama there is no real character or story. And considering how badly games do generally with making interesting stories even when they are relying on post apocalyptic worlds and wars etc, I wouldn't really hold my breath for games that can pull off a happy setting.
Then again, it's been done before. You could say Pokemon, Harvest Moon/Stardew Valley, Pilotwings etc succeed in this, by making the goals and hurdles much smaller scale in the grand scheme of things (similar to, say, Kiki's Delivery Service for example- a movie with no villain). You could also argue that racing games such as Wipeout depict a futuristic world that isn't doing too badly- though the player view of this world is incredibly limited.
I think if you were to go specifically 90s, with colonisation and dinosaurs while keeping it optimistic- you'd probably have to go full 'Radical' with it, make it a comedy or at least light hearted. Think the Goonies meets E.T. Bonus points if you go everywhere on your BMX solving neighborhood mysteries, and have a pet dino who constantly wisecracks and wears a sideways baseball hat, or maybe a propeller hat. And your dad works on Mars or something, idk...