School obviously provides signaling benefits, but there is generally an implication that it provides more than just exchanging cash for a certificate.
People who have had a bunch of education are in a position to evaluate how much the education itself rather than the signaling benefitted them, whereas for people who have not, that is an unknown.
People who have had a bunch of education are in a position to evaluate how much the education itself rather than the signaling benefitted them, whereas for people who have not, that is an unknown.