I seem to recall a joke about someone getting their wife a ride-on mower...
You guys have obviously never used a reel-type mower. You need a bit of weight on the wheels to get some traction, in order for the reel to spin. From the looks of it, I'd say the biggest problem would be getting it to move at all. On damp or lush grass, you'd probably just get wheelspin from the back wheel.