Cats will kill wildlife

I love cats and own two but they never get to roam outside. Surely we now know that cats have accounted for the devastating loss of so many small defenseless marsupials in Australia  ? So why is it that cat owners still have to be encouraged to keep their cats from wandering ? There seems to still exist some notion that it is the nature of a cat to wander and explore therefore we should let them. A safe cat is one contained, one that won't die from snake bite or tick paralysis. So it's not just about the wildlife being kept safe from cats it's also about your precious cat being kept safe from danger. It is estimated that there are 2.7 million domestic cats in Australia and about 18 million feral cats. It's not hard to imagine how many native animals are being eaten on a daily basis. It seems that the population is out of control. We as cat owners can act responsibly and keep our cats inside. The laws around cat ownership are still not strong enough. Feral cats originated from domestic cats and have proliferated to populate all parts of Australia leaving a trail of death and destruction behind them.