It can hurt. For many of the reasons posted already.
Incompatible sexual preferences, or libidos can really drain a relationship sometimes.
Putting off the sex until marriage can also lead to one or the other to be not completely honest, even with themselves about why they’re pushing for the marriage. And once that line is crossed, it can become hallow.
You should already know what you’re getting into before signing a (hopefully) lifetime promise with someone.
I think the education is a symptom of a deeper problem still, and that is corporate entities owning significant parts of the governing process, through lobbying, campaign financing and a rotating door of government positions and coproate advisers.
They want an uneducated population, because that is how they get a greater and greater share of the say in what the government does each election cycle. Getting Citizens United through was one of the worst they accomplished in recent years, but it won’t end there.