Here are some of their answers:
1.
“Im Canadian and my in-laws dont take their shoes off when they come over.
Theyll literally put their shoes up on my white couch.

Yes, thanks now I have to add disinfecting it to my century-long to-do list.”
32, US
2.
“Honestly, their relationship with their parents.

My husband’s parents are not like that at all.
29, New York
3.
“I talk to my mom daily.

My husband won’t talk to his parents for weeks at a time.”
30, South Carolina
4.
37, New York
5.

“I was born in the US but raised Polish.
I don’t understand how my American husband wakes up and puts on jeans to wear around the house.
Immigrant kids have ‘house clothes’ and going outside clothes.”

“My husband wont use a knife to cut the food on his plate.
Nope, the side of the fork will do perfectly.”
39, The Netherlands
7.

“I went with my partner back to his family’s home in Southern California over Christmas.
I couldn’t believe how different the dining experience is there.
The first night we went to a Mexican place.
canunotmywaywardson
8.
“How loud Americans are and how they are not aware of when to tone it down.
Anonymous
9.“Education!
I was born and raised in a third-world country.
We were never allowed to use a calculator in class.
Well, only when doing vector math!
We don’t disrespect our teachers as they are considered like our second parents.”
44, Florida
10.
27, Georgia
11.
“A car doesn’t need to be the size of a tank to count as a car.
Smaller cars are way more common in Europe.
In the US, everything is bigger, and it seems to start with cars.
Bigger cars need bigger streets, parking lots, and garages.”
33, Germany
12.
Some submissions have been edited for length and/or clarity.