In the late 1800s, many children worked dangerous jobs in unsafe workplaces.

Yes, yes they did. They would work in factories and most often they would get cuts or in some cases get crushed by the equipment. 

This is true.

Many children worked in industrial power houses from mills to refineries, it was not safe and it was groomsman work.

Currently, as of february 2016, an american traveling in france would be by the exchange rate. the weakness of the euro and the strength of the us dollar means that items in france cost less to an american than they otherwise would. of course, if this trend reverses and the us dollar weakens and the euro strengthens, such as was happening in early 2008, an american traveling in france would have an adverse experience because items would cost relatively more.