Hence, according to this view, the introduction of vouchers will not create a *greater* danger of governmental regulation of schools for the same reason because these too will be under the control of consumers.
To be sure, government regulates the schools....but this was not caused by vouchers. The key issue is whether vouchers would lead to *more* regulation.
Exactly. Its noy like private schools are "unregulated". They can't refuse to admit someone based upon their skin color, and they couldn't make rules like no lunch is allowed at school or something. We wont see accrediting of teachers. We will not see the government try to tell religious schools they cant say homosexuality is a sin. We will not see the government tell private schools they have to accept this person or that one, or that they can not expell this person.
There are stacks and stacks of legal decisions supporting the rights of privaet schools to have much tougher policies than public schools. Vouchers will not change this. The school I went to could expell anyone for any reason really, if they wanted. Usually, you were given the option of leaving if there was a problem with you. But the students were there because their parents wanted them there. All students were answerable to their parents. The student handbook even had a rule that said you could be expelled for any action the school deemed "immoral". Common incidents involved pregnancy or sex, drinking or drug parties or a generally rebelious atitude.