Why is it not much fun to ride a badly lubricated bicycle?

Riding a badly lubricated bicycle can be frustrating because the lack of proper lubrication causes the chain and gears to grind and resist movement, making pedaling harder. This increased friction not only slows you down but also creates an uncomfortable ride with loud, distracting noises. Additionally, poor lubrication can lead to mechanical issues, resulting in more frequent maintenance and repairs, detracting from the overall enjoyment of cycling.