It's an idea that could very well work, yes but you need to consider that Mars has very different gravity from the Moon, or Venus, Mercury, etc. Mars only having 3.711 m/s^2, Venus having 8.87, Mercury having 3.7, Jupiter having 24.79 (note that this is probably on the atmospheric surface rather than the oceanic surface, so if Steve could somehow miraculously survive the pressure, gravity would be more. Rule applies to all gas giants. Another thing about gas giants: they are more spread out and as such, their gravity is less intense.), Saturn at 10.44, Uranus (the titan of time, not the body part) at 8.69, Neptune at 11.15, the moon at 1.622 (16.5% of Earth's, not 18%), all compared the Earth's 9.78. As you can see, you're gonna need a lot of different kinds of belts. However, you only 1 type for our moon, any of the Jovian moons and Titan (being really lenient, as that window is from 1.2-ish to Io's almost 1.8 [Io is the only moon with gravity more than ours]). And you only need 1 type for Pluto, Triton, and possibly Eris (we won't actually know during our lifetime, as the planet has a 500+ year orbit period, and it too far away to measure). And for the rest except Neptune, Uranus, Venus, Jupiter, and Saturn would require their own unique weight belt to negate jumping issues.
Fun little fact: despite being about 25% of the entire asteroid belt's mass, Ceres only has a gravity .2 m/s^2. In addition, it is considered an embryotic planet, meaning if it weren't for Jupiter, the Asteroid Belt wouldn't exist and several mass extinctions wouldn't have happened on Earth.
(figures for Mars and Mercury, vary between which has more. Either way, they have the same gravity but one is moon-like without the sand/dirt, which would be glassed over into material like IRL obsidian [often called volcanic glass] and the other is... well, Mars-like.)
