[oldembed src="https://www.youtube.com/embed/ih50DKMcPUQ?rel=0" width="425" height="239" resize="1" fid="21"]

This is very disheartening, and reinforces what some experts are beginning to say: That low-income college students need bigger financial aid packages over their entire four years, because they can't fall back on their families for help. Add to the that the social isolation suffered when poor kids can't keep up with the clothing and electronic gadgets their well-to-do peers have, and you're looking at a two-tiered education system:

Angelica, a daughter of a struggling Mexican immigrant, was headed to Emory University. Bianca enrolled in community college, and Melissa left for Texas State University, President Lyndon B. Johnson’s alma mater.

“It felt like we were taking off, from one life to another,” Melissa said. “It felt like, ‘Here we go!’ ”

Four years later, their story seems less like a tribute to upward mobility than a study of obstacles in an age of soaring economic inequality. Not one of them has a four-year degree. Only one is still studying full time, and two have crushing debts. Angelica, who left Emory owing more than $60,000, is a clerk in a Galveston furniture store.

Each showed the ability to do college work, even excel at it. But the need to earn money brought one set of strains, campus alienation brought others, and ties to boyfriends not in school added complications. With little guidance from family or school officials, college became a leap that they braved without a safety net.

The story of their lost footing is also the story of something larger — the growing role that education plays in preserving class divisions. Poor students have long trailed affluent peers in school performance, but from grade-school tests to college completion, the gaps are growing. With school success and earning prospects ever more entwined, the consequences carry far: education, a force meant to erode class barriers, appears to be fortifying them.

“Everyone wants to think of education as an equalizer — the place where upward mobility gets started,” said Greg J. Duncan, an economist at the University of California, Irvine. “But on virtually every measure we have, the gaps between high- and low-income kids are widening. It’s very disheartening.”

The growing role of class in academic success has taken experts by surprise since it follows decades of equal opportunity efforts and counters racial trends, where differences have narrowed. It adds to fears over recent evidence suggesting that low-income Americans have lower chances of upward mobility than counterparts in Canada and Western Europe.

Thirty years ago, there was a 31 percentage point difference between the share of prosperous and poor Americans who earned bachelor’s degrees, according to Martha J. Bailey and Susan M. Dynarski of the University of Michigan. Now the gap is 45 points.

While both groups improved their odds of finishing college, the affluent improved much more, widening their sizable lead.