More than 20% of all U.S. auto insurance companies willincorporate some form of pay-as-you-drive insurance within the next fiveyears, but carriers should think twice about which consumerswill sign up for that service.

According to an InsuranceQuotes.com report, more than half ofAmericans (51%) would not consider enrolling in a PAYD program, anincrease from 37% last year. The findings are based on asurvey conducted by Princeton Survey Research AssociatesInternational of 1,0001 American adults. 

The reason for the pushback? Privacy issues, according to 21% ofrespondents. When broken by age, 27% of those 50-64 years old citedprivacy, compared to only 15% of Millennials, the report says.Perhaps related, the majority of respondents incorrectly think thatPAYD programs monitor for drunk driving and driving in high-crimeneighborhoods (they do not).

Millennials, however, do not share those concerns, as they arethe demographic most likely to enroll in usage-based insuranceprograms. Of drivers between the ages of 18 and 29, 43% wouldconsider participating in a PAYD program, which compares to 36% ofdrivers between the ages of 50-64 and 28% of drivers aged 65 andover. Millennials (47%) are also most likely to have heard ofusage-based insurance, compared to just 27% of those 65 andolder.