Notice how the parent didn't say to wean yourself off 'sugar', but sweets. It he had said sugar, most of the advice about fruits would be contradictory. 'Sweets

Notice how the parent didn't say to wean yourself off 'sugar', but sweets. It he had said sugar, most of the advice about fruits would be contradictory. 'Sweets' generally refers to processed junk food, generally high in sugar and fat. I think following up the conversation by saying fruits are better than sweets because they have water, fiber, and micronutrients, and none of the bad fats most sweets have, is perfectly reasonable.