I am very interested in cue sports, mostly card games but I am also a billiards enthusiast.
I like billiards too, it has a long and rich history stretching from its inception in the 15th century
I don't know much about the history of billiards but I like the logic with trying to figure out the mathematics behind aiming shots. Card games tend to be more entertaining.
Yes games are really important for humans and brain development, they are an integral part of all cultures
Cue sports are a specific subcategory of games that are for multiple people to partake in and many of them do have historical culture attached to them.
Yes and its a different thing if you are English or American, in england it  usually refers exclusively to the game of English billiards
In America it is commonly referred to as pool, which is what I'm used to. There are different variations but they all encompass the same basic set of rules.
Yes i think the same way, pool of course. Have you heard of Mahjong a game from China, i have never understand it