In another question, Chalutznahal cites Yoreh De'ah 340:5, which says that when I witness a fellow Jew die, I must rend my shirt out of sadness. And British Rabbi Dr. Moshe Freedman brings this down as practical Jewish law.
Is this really the prevalent practice among Ashkenazim nowadays?
Please do post an answer; if you don't, at least please post a comment about what you've seen people do.