You must act quickly when they are sick. When indoors, you notice their eating and behavior changes more readily. If you only see your rabbit outdoors for a few minutes each day, you may not catch the subtle difference they exhibit when they are sick. Indoor rabbits will probably live longer, up to twelve years. Outdoor rabbits generally live 2-3 years.
Indoor rabbits are safer from poor weather conditions.
When it is raining and cold, you may not go out to feed or check on your rabbit. He, too, is cold and lonely. Heat is intolerable to rabbits. Temperature extremes can take a toll on a rabbit. They play and enjoy socializing just as we do.