It's very similar, for example, a little further afield: in South Africa. There, when you ask for a "tea," you are served a
rooibos tea. This may be due to the fact that it is native to the Cape region in particular. This is different from black tea in England. It mostly comes from China or India.
While we are on the subject. India is home to an infinite number of different types of tea, yet they are all a type of black or green tea that differs in flavor due to climatic and geographical conditions of cultivation.
Chai tea also comes from India. There it is drunk only by the upper class and refined with some spices such as cinnamon, cloves, anise, cardamom, honey and sometimes lemon. The tea is not poured with hot water, but boiled in the milk, so that the typical chai flavor is created.
China, on the other hand, is less milky, but rather a bit more colorful. Here you can find green, white, yellow, red and black tea. The freshness of the tea leaf and purity are particularly important here. Thus, in the Chinese tea culture, it is rather the case that tea is enjoyed without the addition of milk. Some cultures, however, still add milk and even a pinch of salt.