There is no question that the Eastern Cape education department’s intention to designate all schools as alcohol-free zones is rooted in a desire to protect pupils. In a country grappling with huge socioeconomic challenges as a result of alcohol abuse, the idea of keeping liquor off school premises is a well-meaning step towards creating safer, more focused learning environments.

But with the blanket ban on booze by the Eastern Cape education department, even at private and after-hours fundraising events, there is a major risk of schools losing a steady supplementary income...