How would you like to stay cooped up in a cage all day with no chance to stretch your legs or even hardly move? You would get sick, tired, cranky, and probably mean. Just like your rabbit would.
Rabbits do fine in smaller cage (24" x 24" for small breeds only), IF they get occasional exercise. Rabbits are made to run around. Their thin, light bones are made for sprinting up to 30mph away from predators. They can get spinal problems if they stay cooped up.
The best way to offer a maximum amount of exercise to your rabbit is to have a house bunny. But not everyone can provide a good home in their house for their rabbit. What is the alternative?
If you have a fenced in yard or rabbit run, your rabbit can enjoy hours playing outside on mild days. Even in the cold, if your rabbit lives outside, they can play on the grass.
Rabbits should at least have exercise twice a week, even more if the cage is tiny.
My outside bunnies play outside on nice, mild days. In the winter, I let them play in my yard as long as it's not raining. My house bunny gets out of her cage 2-3 times per day for a couple hours.
How does your rabbit get exercise? Be sure to comment!