I also don’t understand the easy (and free depending on the airline) access to alcohol both in the airports and on flights.
Also, the having to show your boarding pass to buy things at the airport really annoys me because it is NOT a legal requirement. It’s a VAT dodge for the shops:
Do I need to hand over my boarding pass?
No. HM Revenue and Customs has said there is no legal requirement to hand your pass over at a checkout.
So why do shops ask for it?
To help them claim back a 20 per cent VAT on goods sold to shoppers who are flying outside the EU. But to do this, shops need proof of the good’s destination.
HMRC said that airport tax or duty free shops “may treat the sale of goods to passengers intending to take them to non-EU destinations as zero-rated exports, provided they retain suitable evidence such as by scanning the boarding card.”
The only way that shops can get this “evidence” and avoid paying VAT is by checking boarding passes.
What will happen if air passengers refuse to show their boarding passes?
Not much if you shop at Harrods, which already sells all of its products at VAT-free prices in airports.
Shops such as Boots and WH Smiths, meanwhile, operate a single-pricing structure, meaning that VAT savings are not passed onto the customer at the airport. They claim that the savings instead help bring down prices at all shops.
“Any relief obtained is reflected in our single price and extensive promotional offers provided to all of our customers,” said WHSmith.
Boots agrees, saying that claiming back VAT at airports means its customers get “great value” wherever they shop.
Retailers are therefore warning that store prices could go up if they can no longer prove that sales have a zero-rate VAT.
This is despite David Gauke, the Chief Secretary to the Treasury, making the point that VAT relief was put in place to "reduce prices for passengers" rather than as a "windfall gain for shops".