Up until roughly 90 years ago, Dublin had a famous red light district known as Monto. This was reputedly the largest red light district in Europe, and was located in the area around Talbot St, Gardiner St and Amiens St. Anyone who has read Ulysses by Joyce will know it as the 'nighttown' area described in the Circe episode.
Monto - Wikipedia, the free encyclopedia
After independence, the area was 'cleaned up' by the Legion of Mary, and prostitution went underground. Since 1993 it has been illegal for prostitutes to hang around on the streets touting for business.
Red light districts are major tourist attractions in cities like Amsterdam and Hamburg. The prostitution / sex industry exists in Ireland. Wouldn't it make more economic sense, and be less hypocritical, to allow it to be carried out openly and taxed as any other economic activity?