I'm the same age as the author. I've been feeling exactly the same. I feel like in the past there was something magical about travelling. It was like seeing a different world for the first time. Everything was exciting and I noticed every little aspect of the place such as license plates, trash bins, road signs. I still notice those things but I can't help but notice that that feeling of awe is gone. I've been attributing this to age, but who knows, maybe the world is becoming less diverse?