We live in a city where there are a lot of rough sleepers. When we go shopping we will see at least 10-15 people.
I say hi to them and occasionally give some change, I have worked with rough sleepers so I don't feel worried about talking to them but my DCs get very sad about it and don't understand that people can be homeless and how nobody just says come and stay at ours or something.
I'm finding it hard to justify and explain to them about it.