“That video going viral really opened my eyes to this being something people want to talk about,” said Ms. Williams, who has since founded the company Salary Transparent Street to promote pay transparency. “Like this conversation is now open. The taboo of talking about finances is starting to lift.”

Employees of most workplaces in the United States have a right to discuss pay with co-workers. But for a long time, doing so was considered inappropriate, and discouraged.

The trend toward greater sharing of information around money, said Eric Simonson, founder and chief executive of the financial advisory Abundo Wealth, can be traced to millennials who entered the work force during the Great Recession, when the economy was on shaky ground. Gen Z, those born roughly between 1997 and 2012, took the trend even further, opening up about money to millions of people on social media.

“Older generations didn’t have the economic pressures that young folks face,” Mr. Simonson said. “They had a pension that could provide potentially a secure retirement, home values were a lot cheaper, and incomes were higher relative to housing prices and living costs.”

Ms. Wright, the pediatric nurse, said she had become more interested in her finances after hearing her peers talk about high-yield savings accounts and Roth individual retirement accounts. But it was the personal finance TikTok videos on her algorithm that gave her the tools to make smarter financial choices, she said.