The picture is a staged and is a caricature not a depiction or reenactment of anything real. Yes, there was child labour in many industries and it was dangerous

The picture is a staged and is a caricature not a depiction or reenactment of anything real. Yes, there was child labour in many industries and it was dangerous to them in both the long and the short term. No, 3 year olds were not used to sweep chimneys (but slightly older children were, 5, 6, 7). Yes, this was outlawed long before the picture was taken. In the UK an act was passed in 1788 restricting the minimum age to 8, although like many such laws it was not well enforced.