Homelessness is where you have no addressed home and do not have clothing, food, shelter, and medical care. Homelessness is where you do not live under a roof with assistance, homelessness includes not having any money with you to keep yourself free for your whole life.
Well, it's possible, but extremely unlikely. People of the Baha'i faith believe that human beings are naturally peaceful, not violent, but of course history shows otherwise. But if human beings were placed in another environment, say, a whole new generation was to be brought into a peaceful atmosphere, then they to would be peaceful. But then again, you also have to factor in human emotion, those natural tendencies we all have, such as jealousy or rage. That can conflict with building global equity. Although, the way it seems, its practically (from a realistic perspective) impossible since racial, cultural, religious, political and ethnic intolerance is so embedded into the human mindset. But if you're of the Baha'i faith, then you have faith in humanity, and although in the end it may be in vain, you strive to better the world and bring people's of all beliefs, cultures and races together.
The local community.
It depends on your preferences. Some prefer to live in the city, some the suburbs, and some the country.