[jaspax]

I don't think the person you're replying to denies the importance of teachers. Rather, it's that students don't know about the quality of teaching before they get to the school and generally have little way of finding out even if they wanted to, and so other factors actually determine their decisions.

[jonahbenton]

Thank you, yes, this exactly.

Even broad measures and reviews of "teaching quality" one can consult beforehand are at best statistical and simply not predictive for the experience of any given kid.