But often, they seem not to care. They grew up in an atmosphere of nationalism and pride over two decades of strong economic growth. The turmoil caused by a student movement 25 years ago seems irrelevant to a generation more worried about finding jobs and buying an apartment.
"They basically don't bother to try to find out further," said Fu King-wa, a journalism professor at Hong Kong University. "Even if they learn about it, they believe in the government version."
Rowena He, author of the book "Tiananmen Exiles," about lives of student protesters after the crackdown, said many Chinese students abroad claim they know a lot about it, but in fact know little. "Some others would say, 'We knew what happened, so what?' That's typical," said He, who teaches at Harvard University.
Young Chinese tend to find it hard to empathize with students of the late 1980s, she said. "The younger generation is more influenced by cynicism and materialism," said He. "A Chinese student once said to me, 'I really do not believe they took to the street for ideals.'"
Born in July 1989, in a Beijing hospital not far from the sites of the bloody crackdown, Wang grew up without hearing a word about the student movement from parents or teachers. He first heard about it from friends in college in China.
"I was quite curious and wanted to know about it. But I could not find anything," Wang said.
In 2010, the young man went to school in England, where he met a Hong Kong student who showed him a video of the crackdown.
"All I could remember was a young man trying to stop a tank from rolling forward," Wang said. The Hong Kong student "asked me why it has to be like this. I was stupefied."
Back in Beijing, Wang does not think the student movement would come up in any discussion.
"Who would bring it up? There's been no reason to talk about it," Wang said. "Much time has passed since then, and China will not report it anymore. Now the foreign media want to make a fuss out of it. They are talking up the negative things about China."
At Peking University, once a center of student protest, Tiananmen seems to have little relevance to today's students.
"It is not something that concerns us anymore," said Zhang Yu, a graduate student in sociology.
Although some bold Peking University professors have shared their knowledge with their students, most keep the topic out of the classroom.
Chen Haoyun, a freshman majoring in aeronautics, said he first heard about it when a teaching assistant mentioned it in a history class.