That is weird, Pebbles! I've never seen kids selling their toys on the streets around here!!! It's kind of sad, isn't it??? lol
We do have kids selling lemonade from time to time, though. On those rare hot days!
Also, if people have too much garden produce in the summer (the dreaded courgettes!), they tend to put boxes of 'em out on their front steps or on the pavement in front of their house. It's either free if they're desperately trying to get rid of them, or else a pittance. People around here also do that with old paperback books.