The interesting question is not who is credit invisible but how people stop being it, and there is federal research on exactly that. The Bureau's June 2017 follow-up, Data Point: Becoming Credit Visible, tracked when and how consumers acquired a first credit record, using end-of-year archives of its Consumer Credit Panel from 2006 to 2016. Its findings do not line up with the standard advice.
Almost all of it happens young. Of the transitions out of credit invisibility the Bureau observed, "almost 80 percent occur before age 25." It also found that "Consumers in low- and moderate-income neighborhoods who make this transition do so at older ages than consumers in middle- or upper-income neighborhoods." So the population still credit invisible at 30 or 40 is a different population from the one the ordinary advice addresses, and it is disproportionately from lower-income neighborhoods.
Credit cards create the record, not credit-building products. In the Bureau's table of entry products across all age groups, credit cards account for 37.6 percent of first records. Student loans are next at 15.8 percent overall, though the Bureau notes this "is entirely driven by the transitions of consumers younger than 25." Retail accounts follow at 14.1 percent, third-party collections at 12.0 percent, auto loans at 8.9 percent.
The counterintuitive figure worth carrying, because it inverts a standard recommendation. Of the credit cards that served as entry products, "only 5.6 percent, or 2.1 percent of all consumers in our sample, used a secured credit card as their entry product." For consumers younger than 25, secured cards were the entry product for "less than 1 percent." The product most often recommended to someone with no credit history is one of the rarest routes anybody actually takes. That is a statement about prevalence, not about merit: the secured card page argues the product's case, and nothing here contradicts it. But a recommendation that describes the modal path should describe the modal path.
A quarter of people start on somebody else's account. The Bureau found that "About 15 percent of consumers opened their earliest reported credit account with a co-borrower," and that the records of "an additional 9.6 percent of consumers were created when the consumer became an authorized user on someone else's credit account," concluding that "about 1-in-4 consumers first acquire their credit history from an account for which others were also responsible." And it adds the finding that matters most: "The use of co-borrowers and authorized user account status is notably less common in lower-income neighborhoods." The route out of credit invisibility that a quarter of people take is one that depends on knowing somebody with credit, which is not evenly distributed.
A first credit record is not necessarily a good one. The Bureau found that "Consumers in lower-income neighborhoods are more likely than consumers in higher-income neighborhoods to acquire a credit record from non-loan items, such as third-party collection accounts or public records." Twelve percent of first records in the sample came from collections. For those consumers the transition out of credit invisibility is not an improvement in position; it is the beginning of a record that opens with a derogatory entry.
Two limits on all of the above, which the Bureau states itself. The transition study "uses a fairly narrow definition of credit invisibility that includes only consumers who lack a credit record," so consumers with unscored records are excluded from it entirely. And it "focuses exclusively on how consumers acquire a credit record without regard to whether it suggests they are a 'good' or 'bad' credit risk."