I studied Chinese, I went to China multiple times, but I still can't cope with the constant SPITTING on the streets here.
It might be normal for them but it triggers the fuck out of me. Man, I even accepted the propaganda everywhere. Okay...
...but the spitting, which is really, really loud... still makes me mad as fuck. True culture shock for me. Everytime I come here.
Try not to generalize, there are several places in China where that behavior is frowned upon too (especially in big cities and particularly in the urban region of Guandong/Hong Kong). The behavior is pretty prevalent, especially in the countryside, and often people spitting in the bigger cities come from there. I met several Chinese (particularly urban middle class) that are ticked off by the behavior too and even ashamed of it when it happens when foreigners are nearby.
That said I had plenty of culture shock here on my exchange in Japan and together with my Chinese girlfriend.
For the Japanese I can say that I was really surprised how there actually is a sizeable population of stray cats where I live (Osaka, even if somewhat away from the center). And these aren't just normal stray cats, there are really, really expensive pure breeds among them too. Seems like many Japanese have a hard time living with cats (they aren't really great when it comes to conforming to strict rules in a household) and the cats end up being kicked out or running away, ending up as strays. There are barely any stray cats where I come from, so seeing a Main Coon with dirty fur in some small patch of rice field (you have a lot of those in the more outlying parts of the city, funny enough) and getting fed together with several other strays on the street by a good soul, I was really shocked.
There also seems to be quite an unwillingness to let cats into the house as well.
Also whether or not you stand on the left or right sight of an escalator to let people past you is rather strange: It's the right side in Osaka/Kyoto and Kansai in general (similar in London), yet it's the left side in Hiroshima and reportedly in most of the rest of the country.
But just in regards to strollers in particular... it's supposed to be a major hassle in Japan last I checked. And I don't think it's just Canada that is better, but many western countries are better than Japan on this. I bet I could get on a bus with a stroller in much of America with no problem.
Japan (at least the parts I visited: Osaka, Kyoto, Hiroshima among others) is super barrier free compared to Germany at least. They actually consistently have barrier free stalls in pretty much every toilet and have elevators in pretty much every building to help you with stairs, at least in Osaka. Germany would be a nightmare compared to that.
I wanna return to Germany already haha. I miss free internet. Even with VPN... it's not the same.
My PS4 runs like shit online and downloading takes ages.
You got lucky, my German university student apartment (rented to me by the university itself, cheapest and best rent and conditions in the city, except for...) had a fibre optic cable... but a 30 GB download limit a month, with an additional 20GB costing 20€. And 1km outside of the city the best internet you got was 800 kb/s (I shit you not). German internet infrastructure is godawful in general and highly lamented, particularly in the countryside. If you don't have limited internet your connection is usually 3 MB/s max.