Now we are learning that fashionable trainers were crafted by children in grim circumstances in Laos or the Philippines.
The International Labour Organisation (ILO), an arm of the United Nations, has just published a report outlining these horrors and urging steps the world should take to suppress child labour. It says that one in six children are at work between their sixth and 17th birthdays. The occurrence of child labour seems a good barometer of local poverty.
The ILO's arguments are more than moral outrage - they also say the children are of less economic value without decent schooling.
I don't contest the good intentions of these arguments. I'm sure I'd be pained if I saw children in workshops in Cambodia or Somalia. Yet for the ILO's economic literacy, I give low marks: suppressing child labour would only deepen misery.
In its foggy way, the ILO argues parents should be paid the equivalent of their child's market value, replacing the income forfeited if the child attends school instead. It is ambiguous where this money would come from but presumably through taxation of the population - ie, the parents.
It is easy for us to "tut" about child labour from our capitalist affluence. If you live in the deeply impoverished nations where markets have been suppressed or deformed, your only asset is your ability to work, and that of your children.
Sometimes I find people assume children did nothing more than picnic and play happily until the evil capitalists forced them into textile mills and down the mines after the Industrial Revolution. The truth is that child labour was the reality of life in all rural economies long before Dickens got on the case of child chimney sweeps.
It was the rise of capitalism that permitted the extended years of leisure we call education. Working in the newly-emerging factories was regarded as a far better option than slaving in the fields - linen was more profitable than turnips.
Child labour is not the modern invention of "globalisation". All farming has always used children. Scotland's school summer holidays exist not so everyone c