The store owners and the airport company have a joint agreement where 'forcing passengers 'through the store and therefore encouraging them to buy products is beneficial to both parties.
This happens in the souk in Luxor
What will be interesting is that if the UK votes to leave the EU,how is that going to affect duty free shopping in the future,as almost everyone will be able to buy liquor and tobacco at duty free prices,with the exception of those on domestic flights.Therefore returning to the good old days of pre 1999 when the EU abolition came into force
I wonder if we'll be back to the days of 200 fags and a bottle for a fiver