Again Imp, I SO agree with you! I made the original statement "I think it is much harder for a human to fend for themselves when it comes to hunger, thirst, shelter, warmth, hygiene and health" -- think about that for a minute. If a cat is thirsty it can drink from a puddle. If a cat is hungry it can get fed by a friendly person, or chase a mouse or bird, or eat chinese food throw-outs. If a cat is dirty, it cleans itself (self contained, no bathroom needed, no shower needed, no clean clothes needed). If a cat needs shelter it can find a box, a dumpster, a hole in the wall, an abandoned car, a pile of leaves, and it's got a built-in fur coat. What does it take for a homeless cat to get a home? Nothing more than a kind person with a bowl of catfood. Try applying that logic to a homeless person -- and please don't say "shelter" (which I address more below) -- if you believe pounds or animal shelters are not great places for cats, agree that shelters are not great places for humans either... at least in an animal shelter there's a CHANCE a cat will find a home. No homeless person is going to go to a shelter (which usually only accommodates them for a set period of time before sending them back out on the streets) and end up adopted with a nice home. Cat don't need jobs and money to make it in this world.
In case you're interested, welfare is no great comfort. It's hard to apply for welfare without a permanent address (at least in NY). Shelters are overcrowded and people are turned away. They are often dangerous (women get raped, items get stolen, people get mugged, illness is spread easily and often the shelters aren't clean). Most people won't hire someone without an address, and if they aren't cleaned up enough. Pan-handling on the street is demeaning and not a fruitful career choice.
While all of you who chose cats are amazing animal-loving people (no need to stop being that way) think for a minute what you are saying. You make it sound like a homeless person has it made with all the options available... but truly think about how it must be... to have no money, be sleeping in sub-zero weather in a cardboard box, with an empty stomach. Add mental illness... jeez, just add a typical headache or stomach ache. Many are disabled mentally or physically (or both) beyond their choice. Even just imagine what it would be like to not be able to get a clean pair of underwear on for a month...
And on top of that, homeless people includes homeless children -- and they have far fewer choices and are even more at risk...