Cafés milking it over soy

Sir, – I don’t understand why cafés are allowed to charge extra for soy milk up to 60 cents per serving when it only costs a few cents more than regular milk in the supermarket. Drinking soy milk is not a lifestyle choice for people. It is essential for anyone who is lactose intolerant. – Yours, etc,

ANN FitzSIMONS,

Naas, Co Kildare.