When I took Karate from American instructors lineage was always taught informally, but was part of our belt tests. When I trained chinese styles we didn`t have belts, so there was no test, but the lineage was usually mentioned from time to time, but it depended on the teacher whether it was considered important.Some of my teachers were American, and some were Chinese, but I remember one Korean. He Trained in Korea with a Chinese master for 17 years and lived in the man`s home for 12 years as a fulltime student (ie: was training to make teaching our style his sole fulltime profession.) He said that for the first 10 years or so of his training his teacher never taught him anything about lineage, and if he brought it up, the answer was always the same.
"Will knowing who taught me and who taught them make you a better fighter?"
It wasn`t until he was teaching full time on his own that his teacher began to teach him all the lineage of their style of Baguazhang.