One thing missed in the discussion of how to organize schools, how resources are distributed, and how students are admitted is that parents in large urban areas are often interested in safety, as much or more than test scores.
Charters seem to capitalize on safety as a critical element of the school environment through the self-selection of motivated parents seeking an escape from the before and after school violence that is far too common place, and left unaddressed by schools, since often the violence occurs off of school property, and is also unaddressed by the community, which has no real means to confront bullying, arguments, intimidation, theft, threats, punches, and fights that are an unfortunate part of the school landscape.
So, for some parents charter means safer. That’s a prerequisite for classroom order, student confidence, and the focus on achievement.
While it is not the school’s fault, many public schools are affected by being in a violent sphere, and student performance is affected.