The fact is, making home alcohol is super easy. Yeast is omnipresent, and are happy to eat basically any sugar. Wild yeast won't get you alcohol concentrations in the 15-20% like commercial yeasts will, but can easily go up to 8-12%. Apples, grape juice, honey + raisins will all easily make you hard cider, wine, and mead, respectively. If you have a freezer, you can even use freeze distillation to increase the ABV. Banning all ingredients that could be made into alcohol is completely impractical.