I think it's an awesome project that the humankind needs, even if it just to increase interest in space travel and the colonization of Mars.
Then there's the street people in the U.S. - a lot of them ex-military - and the homeless kids, and the people living in their cars because they lost their homes to a corrupt banking system, all who don't think about the Mars One project very much, because they are almost starving to death.
If you would rather do drugs all day then get a job to pay rent then yeah your gonna end up homeless. I have no sympathy for people addicted to drugs or lazy. Now that being said of course I do have sympathy for the rare homeless person that is actively looking for a job but just cannot find one and is not addicted to drugs or alcohol. Now back to the topic at hand of mars one.
I cannot find where I read it but I believe they said they will be televising the training of the people chosen to go to mars.