What makes you think that changing a person's 'welfare' to 'guaranteed income' will change their proclivity for anti-social behaviour?

The expectation that all people will manage their guaranteed income wisely rather than blowing it on drugs and booze within the first week of the month, and ten letting the kids shoplift for themselves for the other 3 weeks, is one of the many unrealistic rosy visions surrounding this entire scheme. 

To clarify, I do think that a guaranteed income (if we could afford it) would work well for some people, but it won't magically stop crime, prostitution, addiction, mental illness etc., nor would it protect the kids in the care of adults afflicted by these 'demons'.