A "Guardian" is the person who is charged with caring for minor children. (Guardians can also act on behalf of an adult incapacitated child.) In Texas, children are minors until they reach age 18. Guardians may be named in your Will or in a separate instrument titled, "Declaration of Guardian for Minor Children." A "guardian of the person" is responsible for making parental decisions regarding the minor's upbringing, education and welfare. A "guardian of the estate" manages funds and other assets that belong to the minor (but not funds that are placed in a trust for the minor, which are managed by the trustee of the trust, and not for funds and other assets held in a Uniform Transfers to Minors Act account, which are managed by the custodian). The same person may be both the guardian of the minor's person and the guardian of the minor's estate. This person may, but need not, be the same person who serves as trustee of any trust created for the minor's benefit in your Will. Co-Guardians of a minor's person may be named, but only if they are married to each other (i.e., husband and wife).