who am I to say yes? who am I to say no?

I had stopped on my bike at a street light at the corner of Church and Market where I heard a homeless man ask a few well-dressed bros for change. One of them asked, "Who am I to say no?" before digging into his pockets. The light turned green and I kept going. I thought about this question for the rest of my ride and appreciated that built into it was the implication that every choice we make is a part of who we are, even the most mundane, the most automatic, the most distracted decisions that happen all the time and everywhere.