My current guys are indoor-only house cats, and sometimes I feel guilty for not allowing them to run free and hunt - but that's largely because I never, ever want to have to repeat the experience of identifying a beloved cat after it was hit by a car and had to be put down. Once was too much.
Cars and predators and disease are a risk...there are lots of feral colonies in my province, several not-for-profit organizations look after feeding them, and run trap/spay-neuter/return programs to help control populations. They will place younger kittens in homes if they're deemed suitable. But it looks like this guy has found an ideal spot for now. He'd be lucky to get adopted by a nice home, though.