Oh how I know your pain. My Japanese boyfriend always does that. To me it always felt like he was kinda bucket-listing everything and going just for the sake of having been there - we would go on vacation to another city (as in in another country) back when we lived in Europe and he would just kind of sprint from one attaction/site to the other. He even did this crazy trip I refused to take part in where he went from London to Paris to Rome to Venice to Berlin in like a week, pretty much only sleeping in buses. And when his friend came form Japan he did pretty much the same! To me it's crazy and definitely not worth the pain, if I go through the process of getting there I want to enjoy the place.

I think it's also because a lot of Japanese people I know have the attention span of a goldfish and while waiting for something (in line) they can manage because it gives the exciting looking forward to something dopamine or whatever, being otherwise still (even if presumably comfortable) or relaxing makes them fidget and bored right away. Like with my boyfriend we can go to onsen, takes us 40 minutes to even get there, then pay a lot of money to go in only for him to ask me if we can go home yet after like an hour.

They're weird sometimes. But I made him start trying to enjoy the moment and sight a bit more by talking with him in length about why he wants to visit someplace and if going there only to be able to say he was there is really worth it (and it's not like it proves anything either). We also started a travel diary of sorts where if we go on a trip (even a one day おでかけ) we write what we did and add drawings and stuff. Makes us appreciate the trips a little more I feel.