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What young person doesn’t enjoy a good story? And it doesn’t have to be about vampires or super heroes. The top thing young adults want to hear from grandparents is about experiences and decisions that shaped their life, new research shows.

This is especially true of events having to do with money, according to a survey from TIAA-CREF, a financial firm with $613 billion under management. The finding suggests that grandparents who are willing to talk about their financial follies can play an important role in helping their grandkids learn early to save, manage debt and stick to a budget.

Only 8% of grandparents say they are willing to start a conversation with their grandkids about money, the survey found. Yet 85% of grandkids aged 18 to 24 say they are open to such a conversation. In a further sign of this divide: only 30% of grandparents believe they could have an influence over their grandkids’ money habits; but 73% of young adults say their grandparents already have such influence.

How can perceptions be so different? For one thing, young adults have got the message and are intensely interested in understanding how to manage their money. In the survey, 97% said they were concerned about saving for their future. They see their grandparents as a role model: 59% rated their grandparents as very good or excellent savers.

Grandparents may be missing their influence due to cultural differences, the survey authors say. Many grandparents today are Baby Boomers, the generation that once upon a time didn’t trust anyone over 30. They wonder why young people would listen to them about anything.

But Millennials are coming of age in different times. They embrace the new multi-generational workplace and family. Through the Great Recession, they have seen first hand how tough life can be and they tend to respect elders who have muddled through despite life’s many ups and downs, says Joe Coughlin, director of the Massachusetts Institute of Technology AgeLab, which collaborated with TIAA-CREF on the study.

Coughlin suggests initiating the money conversation with grandkids when they are teens or earlier. Saving for college is a great starting topic. This may require crossing another divide, however. Grandparents are largely in the dark as to how expensive college has become. Four-year university costs easily run to $100,000 and can shoot to $160,00 or more at a private school. Yet one in five grandparents believe the total to be under $50,000 and a quarter believe it to be $50,000 to $75,000, TIAA-CREF found.

In speaking to grandkids about money, the trick is framing the discussion as a personal experience. Kids love to hear stories about rituals, big decisions, frugality and home life, he says. Grandparents can find ideas and conversation starters for teens here and for younger kids here and here.

Taking on this subject can be a fun and rewarding way to get to know a grandchild better—and it may be a huge help to parents. “Life has gotten very busy for dual income households,” Coughlin says. “Grandparents can fill in the gaps. They have the time and the stories to tell.” They just need to understand that, unlike themselves in younger days, the kids will listen.

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