This stems from another musing on why we are so threatened by teenagers on the street.
Aside from the media portrayal that is
The real question is – Why is it only teenagers on the streets?
Here lies the problem, how can we have community if we stay in our houses?
So one answer is street rights.
Allow people (or promote if already so) to sell in front of (or from if blocking the street) their houses. Encourage entire streets to show, sell and share. Get people out and talking.