I don’t doubt that some schools are worse than home-schooling. But think (for many, not all kids) the best school is better than the best home-schooling.
I disagree. I went to one of the best schools in Britain and my kids got a better education than I did.
Kids are individuals with different talents and interests. Tailoring education to the individual is usually better than standardising it and that is the key difference between schools and HE.
They can do subjects that schools rarely teach and follow interests. For example, my younger daughter has GCSEs in Latin and astronomy. Both my children have a really wide range of interests and and that broad education is something school rarely really deliver - they can make kids do subjects but few people seem to come out really enjoying a wide range of them.
I very much doubt my older daughter would be in a very male dominated career (automotive electrical and electronics R & D) if she had gone to school. There is more room to be yourself without being brainwashed into stereotyped roles.
