may make it harder to change practices that aren't optimal or that frustrate parents, not easier?
Because looking on Mumsnet, whenever a parent in England expresses an objection to something in their kids' school that doesn't make sense ("Why does the school require this GCSE as mandatory?" "This discipline policy is insane and doesn't make sense" "My child's school keeps sending homework that is just busywork and doesn't seem to teach anything" "The uniform policy is over-the-top" "They keep pushing religion at my child") they seem to provoke a lot of responses along the lines of "Well, surely you CHECKED the school policy before you chose that school? You have school choice. If you chose this school, you have effectively chosen this policy as well, and you therefore have no right to object to it."
The reality is that what with population pressures, transportation/work commute issues and so on, a really high percentage of people don't really have any school choice. And even if you do, well, what are the odds of finding a school which has policies in line with your preferences for uniforms AND for discipline policies AND for homework policies AND for which GCSEs are compulsory AND for religion AND for absolutely every other possible area where a school could conceivably have a policy? It's never going to happen--you can't find a school that ticks every box and is actually commutable for the family.
But the idea that "Well, you chose the school so you have signed up to every policy they have ever created" is used as a reason for the idea that parents should never have the right to complain or question a school's policy on anything. And I am genuinely wondering if this makes reforms or improvements harder rather than easier. (Yes, it goes without saying that often when parents moan about things at school they are being unfair or unreasonable--however, sometimes parents do make valid objections to stuff in my opinion.)
It would be interesting to see whether parental satisfaction levels are actually any better in countries where school choice is allowed. My own hunch is that they most likely are not!