u/Ok-Connection8473

Curious European here. I really like the taste of root beer. Where did it come from and how did it become a thing? Here it's a bit of a rarity and you usually find it in the American section at the grocery store, if they have one.

How common is root beer in the US? Who drinks it? Is it for children or is it enjoyed by everyone? Is the popularity regional? Like for example Dr Pepper being popular in Texas compared to other states.

Do you drink? How often and what occasion?