I don't much like the actual travelling. I'm always a bag of nerves when I have to fly between the UK and the USA. Might not be quite so bad if I didn't have to connect between a transatlantic flight and the domestic flight, and the journey from Leicester to Heathrow always worries me. They always get something wrong - usually a flight delay or a rail strike so that I end up having to rush, or no room for my luggage on the vehicle. And I hate going through security. Everything out of pockets, liquids bag, shoes off. And the crowds at the airport are pretty inconsiderate.
I used to get advised to declare my ASD, till I tried it and got offered a wheelchair. So I just wing it. I wouldn't dream of taking more baggage than I can carry onto the plane - what do I do if I'm waiting at the carousel and my bag doesn't appear? I hate being forced to trust the staff. It's a rich man's game really. Pay through the nose for first-class seats, priority boarding, etc., and it's probably quite comfortable. Economy class sucks. Some jerk in front of you tilts their seat back and you're trapped like a sardine in a tin, movie screen in front of you end up too close to your face to see properly. Still, once I've arrived I get a rush of euphoria at having completed the mission. Travelling alone is probably the cause of most of my fears. It's reassuring to have somebody with you rather than having to make decisions on the hoof with nobody you feel good about to run your ideas past.
As for simply being in another place, I don't get much out of ritual holidays or seeing the standard sights. They charge tourists way too much money. But I'm rather happier if I can get off the beaten track and see something a bit more real and less commercialised. I like visiting friends and living in a private space that I can arrange how I like. When I used to take holidays in Cornwall I always went for a self-catering flat.