Is USAA auto insurance available only to those in the military?

no,that's wrong,this is truth that USAA gives lot of advantages to military person because their work towards country, in a country like USA, military insurance person get lot of advantages of that,

USAA is also offered to non-military person also,non-military person can open bank checking account in USAA, yu have to just contact them,you can get memebership and then you can open

regular bank checking account ,but USAA is not provided auto insurance or home insurance for non-military person,