The Revolutionary government basically legalized prostitution, which the monarchy had previously banned. Which makes opebo's steadfast support of the ancien regime kind of ironic.
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Well, I suppose the old ways represented different things indifferent lands.. but one rather doubts that there was any effective enforcement of anti-prostitution statutes under the monarchy..
I don't think the upper class in pre-revolutionary France needed prostitutes as we normally think of them. I'm pretty sure they had access to a lot of women in exchange for pay without fear of prosecution though.