RedRagan: It will be different for every country though.
Yes, and not just every country but different parts of many countries as well. In the US it can vary quite a bit by county, at least in terms of services and police/legal interactions (the US also incarcerates a lot of people, and many people are homeless when released). But in general as you mention food, water, and clothing are widely available here, although there is also a lot of sleeping under bridges. A large portion of people who are homeless in the US are disabled and unable to work and many who can work do, but often not enough to afford rent (at any particular time there are also a bunch of people who will only be homeless briefly). I'd guess the way the drug cartels interact with homlessness is different in the US vs. other countries. There is a huge variety of individual experiences even in any particular place (e.g. between people who have a car (or can stay with friends) and those who don't) as well as based on gender, race, sexuality, immigration/citizenship status, language, particulars of disability, any reasources available from family or friends, etc. I would guess the situation is quite different in some ways in countries with very low wages in general. In many places the quality of housing varies much more than in the US leaving a less sharp line beween homeless or not (although even in the US is is not always a sharp line).
The developers here are from the UK, so that will also be different from the US, particularly the government aspect and the limited generational homelessness. They do say "in the world" so I wonder if they are trying to make some generic experience based on aspects from around the world or if it is more specific to the UK.
In general, a game about homelessness seems like a bad idea to me. IMO, it would be much better if they try to raise money and awareness while making games about other things. Or make games that include stories from people who are homeless without trying to turn homelessness itself into a game. I also find it suspicious that they have a vague statement about raising money but no details.