The spaceship we're currently on makes very inefficient use of material: its shape gives the least surface/livable area; and its density is the highest in the solar system. The resulting gravitational pull makes it very hard to leave: chemical rockets will just about work, but need multiple stages.
In contrast, a more efficient design, like a spin-gravity cylinder inside a hollowed-out asteroid, is much easier to leave (in fact, we'd be flung away, if the floor weren't accelerating us inwards; say, by stepping over a trapdoor!). Whilst such a ship would certainly be more maneuverable than the Earth, it would probably be easier to leave in a convenient orbit (e.g. as a cycler), and use smaller, leaner ships for bespoke travel around the solar system (no point wasting fuel to keep accelerating/decelerating all the gardens, farms, factories, schools, etc. if they're not needed en-route!)