When did it start

I was in grade school and we would run errands with my dad. I lived in a suburb of LA, and seeing homeless people was very common, especially on our side of town. I remember sitting outside the 99 cents Store, they had just come out and were a pretty big shopping excursion for a grade school kid on an allowance. A man was making his way torwards our car, he was carrying windex and some rags. He had white hair and a beard, he looked weathered and tired. He washed a car's windows that was a few cars over from us. I forget why we were waiting in the car, but my dad had a truck with a cab in the back and I was just in the cab part, peaking over the seat at this man. I wanted to watch, but I didn't want him to know I was watching. He came and asked my dad if he wanted his windows washed. My dad said yes. He made a little conversation with him, they found out they had both been in the air force. My dad handed him a handful of ones, "thanks guy." My dad used that term a lot, he is sort of socially awkward. I had watched the man the whole time, he was very silent, did his work on the windows, and greatfully accepted the donation. He always looked down, but did say, "God Bless." I remember being so young, but happy that this man knew who God was. I always got this pit of the feeling stomach ache when I saw homeless people. I couldn't help, even if I wanted to, I was sad they had nowhere to go, no one to love them or take care of them. This man was also doing more than asking for a hand out, he also wanted to work for the money. I tried to offer him a smile, but since he looked down most of the time, I don't think he saw. My brother was a toddler in the car seat in the front, he wouldn't remember any of this. I am thankful that I had/ have parents that wanted to help those out in need. I feel that it has affected me in way that has shaped me greatly. I have no picture of this event, but a very vivid memory tucked away in my thoughts; the parking lot, the newspaper my dad was reading, the cup of coffee he was drinking, my brother kicking about in the seat, the purple 99 cents store sign, and the parking lot with cars stretched out and a man walking away with his head down.