There are several species of animals that humans have bonded with over millennia, and because of that history of bonding, the animals tend to be easier to befriend: e.g., horses, dogs, cats, pigs, even rats! The fact that indigenous Australians don’t have a history of domesticated kangaroos suggests that they’re wary around each other (bit.ly/kanga-life). I recommend loving non-domesticated animals at a distance, and allowing them their freedom to roam. If you really want to feed some animal visitors, just be aware of potential consequences: bit.ly/reddit-murder-murder.