I used to always give money to the homeless who asked for it on the side of the road. One day a relative pointed out to me that nearly every time I give to one of the homeless, I or my family gets something beneficial in return at a later time. It's definitely possible it's all coincidence or confirmation bias, but my question is should I keep giving to them with this knowledge? Or should I not due to the fact that I involuntarily expect something in return now, defeating the purpose of the generosity? Thanks.