The poor peole (on welfare) are mor likely to be trouble - they are on welfare for a reason.. Rich people pay good money to be shielded from trouble.

Do you have children? Did you get a cheap flat in the poor part of town? Many families pay higher rents, so that their kids have save streets and playgrounds to play in.

In my middle class neighborhood, I am not aware if a rich kid causing trouble. What trouble do you have in mind? Loud parties? Is the rich kid going to steal my kid's iPhones? I am talking about violence, pollution, syringes on playgrounds, stuff like that.