Gen Z, the 69.3 million U.S. teenagers and young adults who are expected to make up nearly a third of the U.S. workforce by 2030, may be the most idealistic generation since the Baby Boomers.

You remember the boomers, don’t you? They’re the workplace veterans who’ve been retiring at a rate of about 10,000 a day for the past several years. Gen Zers, in many cases, are filling their slots—though the youngest Gen Zers are still in middle school.

The boomers have left their mark, not only on the workplace, but on society as well. They played a major role in the civil rights battles of the 1960s, spearheaded efforts to end the Vietnam War, and helped create the environmental movement, which spawned Earth Day in 1970 and, more recently, raised awareness of climate change, “forever chemicals,” and other concerns.

They also clashed with authorities on campus and elsewhere, often in defense of free speech, and they mainstreamed protest songs as folk music. Shy they weren’t.

Now, fast forward to today’s Gen Zers—the boomers’ grandkids— who are equally passionate about certain issues: climate, diversity, equality, peace, sustainability.

But be cautious: because Gen Z itself is hardly a monolith. And many Gen Zers, still in their early teens, lack the knowledge and maturity to make informed decisions.