In general, the majority of cats will prefer the sand clumping type litter without a liner. Be careful of using this type of litter with young kittens who after 4 weeks of age begin roaming and exploring by licking and cleaning themselves. This litter when eaten expands and can be fatal if enough is ingested. In the past, dogs were allowed to roam freely without supervision. Many cat caretakers have followed the same trend.
Many people believe that cats are a more wild species who require time outdoors for their happiness.
Some of these people also feel they are willing to have a cat that has a shorter lifespan if the cat is happy. Others believe that indoor cats can be just as happy and do not even wish to go outdoors when raised indoors from kittenhood. Some caretakers deal with behavior problems, such as scratching of furniture and urine marking or inappropriate elimination by allowing their cats to go outdoors rather than try to treat the behavioral problems.