Columbian and United American allow grandparents to purchase up to $25K on their grandkids... Columbian allows child term riders on their FE that will cover children, grandchildren and even greatgrandchildren. The nice thing about the term riders is you only need the chjild's name and age. You do not have to get the dob, SS# or address.In many or most states, the grandparent would have no legal right to purchase the policy without parent/guardian consent nor could the grandparent answer some of the questions for a minor.
Most of the quality carriers I have seen require parent/guardian signature on app. I have even seen some carriers not allow a grandparent to be an owner of a policy even with parent signature & consent. Those carriers claim some state laws don't allow it
With the United American juvenile WL policy you do have to have the DOB and SS number but you do not have to see that child and the child can live in another state as long as the applicant (grandparent or parent) is in the state where the application is taken.