I took my camera to the beach to practice a while ago. It was the first time I’d actually tried taking pictures of people, and I didn’t want to feel like a total creep. It still is sometimes a bit awkward to try to take pictures in the public like this, and I want to respect people’s privacy. But you’re in the public, and I want to practice, so…
Nobody has every hassled me about capturing their soul or anything, but I have the feeling just offering to send them a copy of it would be okay for most people. “…But it looked so good! If you give me your email, I’ll send you a copy, I promise it’s great.” I don’t want to offend people, but there’s a lot pictures can say about people. Capturing a human moment is always a real pleasure.
I’ve heard that some street photographers still use film. There’s benefits to looking for the moment, taking your time to do things, not obsessing about the picture you took one second ago and instead looking for the next shot, etc. But there’s also the advantage of “I can’t delete it, it’s film.”
Worth considering if you want to do lots of street photography, I guess, but there’s other options of just being more discreet and trying to respect other people.