Why are airports so stressful?

Is it just me? I have flown hundreds of times, but each time I approach an airport, my stomach knots up and I feel quite tense. I know that there is lots of time before my flight and that I can park the car without rushing, yet I still feel tense.

Yet what could possibly go wrong? I only have to sit for a few hours on a hard metal seat, watching the monitor like a hawk in case there are any changes to my take off time. I am not afraid of flying and know that it is a very safe form of transport but I still tense up each time that I sit and wait. I usually plan to pass the time by having a meal, such as it is. I then wander into the duty free shop where I am often tempted to buy vastly overpriced sweets and biscuits or invest in some unheard of brand of whisky or gin. I know that it will all be very much cheaper when I arrive at my destination, but it is something to do and passes the time.

I am sure that everyone feels just a little tense before any long journey, but a self drive holiday or one by train is so very relaxing, compared with air travel.

We travelled to Spain by train recently and it was so unhurried compared with the stress of the airport.