They probably get their money and food from petty crime? Like some of my family at some point. Would be nice if that could be avoided by giving them some money instead of them taking it from random shops. We should bare the burden together.
No. I am fed up of this pathological altruism. They should be looking for employment. End of discussion.
It is simply wrong to take from others who work to those who cannot be bothered to work. Everything you do afterwards is trying rationalise your desire for UBI because you believe it to be virtuous.