Millennials are most enthusiastic about buying usage-based insurance and believe it’s a better way to calculate premiums, according to research from Towers Watson. Here's why: Young drivers prefer UBI (72%) to traditional premium calculation factors like age, gender and credit score, compared to 51% of other age groups surveyed. Millenials are also more willing to participate in UBI by downloading a new smartphone app (92% versus 81% of members of other age groups willing to try UBI) or through an existing app (88% versus 81%).