The best way to avoid making assumptions about the community population is to go to them for input. What you are describing seems like an excellent opportunity to interact with people from the community, share information with them, and learn about what they would like to do or would like to see happen. One way to do this would be by engaging with one or more community organizations (e.g., neighborhood organizations) and talking with them about next steps. It might help to do some focus groups with potential participants/recipients to learn what sorts of things they would like to see happen, whether they would attend, if they would want to help make it happen (or take charge of making it happen). Another idea would be to knock on doors and poll neighbors about their interest in the type of event you have in mind. The more you can involve members of the community, the more likely it is that your initiative will reach them. Hope this helps. Best of luck.