> The math of insurance is based on having the biggest, most diverse risk pool to sop up any poor bets. If I were running an insurance company, I’d want a pool

> The math of insurance is based on having the biggest, most diverse risk pool to sop up any poor bets. If I were running an insurance company, I’d want a pool of low-risk drivers, whatever my actuarial research showed that to be. Compete for them on price and, if forced to serve all comers, offer worse pricing for those my research shows to be higher risk. USAA started on the premise that military officers were a good (low) risk population of drivers to insure.