Is not giving homeless people money a form of financial abuse?

I never give the homeless money. I think doing so may be physical and emotional abuse. Many homeless people are drug and alcohol dependent so money in their hand can either cause them to purchase substances that are never going to help them and also possibly put them in danger. I will go and buy food, drink, blankets and shoes if needed also time finding local charities that provide somewhere safe to be and some help and support. It's easy to walk away but these people are somebody's brother, sister, son or daughter. What if they were your child?