Birthday Party; Cultural difference

Cultural differences when it comes to birthday parties, between Korea and North America (in my experience)

In Korea;
When the birthday person invites friends for a party, friends usually bring a present. In the case of very close friends, they could ask what the birthday person wants. The birthday person buys lunch or dinner at a restaurant.

      https://images.app.goo.gl/XiXZ3NwN6rby9FEN7       

From the K-Drama: The Legend of the Blue Sea
(It's one of very popular K-drama, you should watch it on Netflix)

                                                                    

  

As per, young people generally loves having cakes like here. But older generations prefer rice cake. 

      

    

In Canada;

I found out that the friends (adults) buy a meal or drink for the birthday person (I don’t know about presents) when celebrating a restaurant or a bar. Some people bring a present as well. 

Is my understanding correct? If not, please let me know.

When in Rome, do as the Romans do. I would like to learn the culture here, so I don’t make a mistake. 

But in the case of kids' birthday party is almost the same.