S.D. Codified Laws § 26-1-3
Enforcement of minor's rights--Guardian or conservator required
A minor may enforce his rights by civil action, or other legal proceedings, in the same manner as a person of full age. However, a guardian or conservator must be appointed to conduct the same.
Source: SDC 1939, § 43.0109; SL 1993, ch 213, § 115.