"child labor" is marxist code for banning the child from doing productive work.
these days they effectively ban 20 somethings from doing productive work as well. soon only 76 year old farts will have jobs and everyone else will be eating the food the old farts are growing.
because, you know, chosing to work instead of being poor is being exploited. how dare you choose not to be poor like the rest of the proles.