The latest survey found younger consumers were more likely to miss payments. More than half of Gen Z or millennial respondents-- those born between the early 1980s and mid-to-late 1990s-- said they had missed at least one payment. That compares with 22% of Gen X, who were born in the early 1960s to early 1980s, and 10% of Baby Boomers, those born between the mid-1940s and 1980.