There's nothing wrong with the younger generation that becoming taxpayers won't cure.

The quip plays on a familiar generational complaint: that “kids these days” are irresponsible or idealistic. By suggesting that paying taxes will “cure” the younger generation, it implies that financial obligation and civic burden tend to temper youthful attitudes—making people more pragmatic, cost-conscious, and skeptical of expansive promises. The humor comes from reducing complex social and moral development to a single rite of passage: becoming a taxpayer. It also hints at a cyclical pattern in public life, where each generation criticizes the next until the next inherits the same responsibilities and constraints.