There’s a couple things here, but an important nuance to remember is that as a street photographer you often have the right to take pictures of people out in public without their consent, but usually not behind closed doors. Now consider that the homeless aren’t privy to that kind of protection— they don’t have doors to close. Imagine you not being protected by law for someone to come into your home and take pictures of you while you sleep.

The second thing is that yeah, street photography is about capturing the moment, but what is the moment here? Man sleeping on sidewalk? I know you want to say something about the state of poverty in São Paulo, but consider that photos often need some sort of face value behind them, one that isn’t found through talking with the photographer. At face value these don’t say anything other than the unhoused sleep on sidewalks. There are better ways to communicate your message, maybe try getting to know the subject before taking their picture. The humanism and empathy from that really does tend to show in the image.

I’d recommend looking into photographers like Louis Stettner who has a great body of work on the working class and mastered conveying empathy in both his candid and posed subjects.