This would automatically eliminate low-income families. The charter can be publicly or privately funded. The teachers do not have to be certified. The union is often barred. In some states private businesses are prohibited from obtaining charters, but they can get a community or educational group to front for them.
Charters claim to provide high quality education and discipline.
In national tests, charter school students didn't perform any better than their public school counterparts and they often performed worse. There has been a proliferation of companies who plan to make money educating our children. These firms come in, spruce up the school, fire the existing staff and hire non-trade union, uncertified teachers, pay subsistence wages. The goal of these companies is to make a profit, not to educate. Increasingly school districts are privatizing segments of the schools.