They can. They just need to pay a little more. We’re talking 25 pence per liter at most compared to no sugar tax. Higher sugar intake is correlated with obesity which means more health problems which is more expense for the NHS. It’s like a train ticket or gas taxes or taxes in general, some percentage of usage that causes the problem needs to pay for the thing that deals with the consequences or expenses that solve it.

It’s the companies who have decided that they would rather sell shit soda, and consumers who are probably unwilling to pay anything except the cheapest price possible - wealth inequality and poverty problems aside because that’s a different social policy that should not be addressed through a sugar tax.