Your argument hinges on the opinions of children? Children don't have fully developed brains.
My argument doesn't hinge on the opinion of children. It was just a thought experiment. My point was that children have an inborn sense of fairness and are less likely to have ideologies lodged in their head. So perhaps they would be a better judge of what is fair.
My point is that it is unfair to the productive to take by force the product of their labor and give it to those who are unproductive.
If you doubt this and you have children, try an experiment. Children have a good sense of fairness (it's inborn). Take (without their consent) something they earned (and value) and donate it to Goodwill. Afterwards, when you tell them what you did, you can explain to them it's for the good of society if you want. See how they react.