I agree that it was the intent of the legislature to carve out the exception for those in the act of hunting, but that is NOT how the statute was written. Because Kyle was older than 16, he did not need to comply with 29.304:
29.304 Restrictions on hunting and use of firearms by persons under 16 years of age.
(1) Persons under 12 years of age.
(a) Prohibition on hunting. No person under 12 years of age may hunt with a firearm, bow and arrow, or crossbow.
(b) Restrictions on possession or control of a firearm. No person under 12 years of age may have in his or her possession or control any firearm unless he or she is enrolled in the course of instruction under the hunter education program and he or she is carrying the firearm in a case and unloaded to or from that class under the supervision of his or her parent or guardian, or by a person at least 18 years of age who is designated by the parent or guardian, or is handling or operating the firearm during that class under the supervision of an instructor.
(c) Restrictions on obtaining hunting approval. Except as provided under par.
(d), no person under 12 years of age may obtain any approval authorizing hunting.
(d) Restrictions on validity of certificate of accomplishment. A person under 12 years of age may obtain a certificate of accomplishment if he or she complies with the requirements of s.
29.591 (4) but that certificate is not valid for the hunting of small game until that person becomes 12 years of age.
(2) Persons 12 to 14 years of age.
(a) Restrictions on hunting. No person 12 years of age or older but under 14 years of age may hunt unless he or she is accompanied by his or her parent or guardian, or by a person at least 18 years of age who is designated by the parent or guardian.
(b) Restrictions on possession or control of a firearm. No person 12 years of age or older but under 14 years of age may have in his or her possession or control any firearm unless he or she:
1. Is accompanied by his or her parent or guardian or by a person at least 18 years of age who is designated by the parent or guardian; or
2. Is enrolled in the course of instruction under the hunter education program and is carrying the firearm in a case and unloaded to or from that class or is handling or operating the firearm during that class under the supervision of an instructor.
(3) Persons 14 to 16 years of age.
(a) Restrictions on hunting. No person 14 years of age or older but under 16 years of age may hunt unless he or she:
1. Is accompanied by his or her parent or guardian or by a person at least 18 years of age who is designated by the parent or guardian; or
2. Is issued a certificate of accomplishment that states that he or she successfully completed the course of instruction under the hunter education program or has a similar certificate, license, or other evidence satisfactory to the department indicating that he or she has successfully completed in another state, country, or province a hunter education course recognized by the department.
(b) Restrictions on possession or control of a firearm. No person 14 years of age or older but under 16 years of age may have in his or her possession or control any firearm unless he or she:
1. Is accompanied by his or her parent or guardian or by a person at least 18 years of age who is designated by the parent or guardian;
2. Is enrolled in the course of instruction under the hunter education program and is carrying the firearm in a case and unloaded to or from that class or is handling or operating the firearm during that class under the supervision of an instructor; or
3. Is issued a certificate of accomplishment that states that he or she successfully completed the course of instruction under the hunter education program or has a similar certificate, license, or other evidence satisfactory to the department indicating that he or she has successfully completed in another state, country, or province a hunter education course recognized by the department.
Which leaves 29.593
29.593 Requirement for certificate of accomplishment to obtain hunting approval.
(1)
(a) Except as provided under subs. (2), (2m) and (3), and s. 29.592 (1), no person born on or after January 1, 1973, may obtain any approval authorizing hunting unless the person is issued a certificate of accomplishment under s. 29.591.
(b) A certificate of accomplishment issued to a person for successfully completing the course under the bow hunter education program only authorizes the person to obtain a resident archer hunting license, a nonresident archer hunting license, a resident crossbow hunting license, or a nonresident crossbow hunting license.
(2) A person who has a certificate, license, or other evidence that is satisfactory to the department indicating that he or she has successfully completed in another state, country, or province a hunter education course recognized by the department may obtain an approval authorizing hunting.
(2m) A person who has a certificate, license, or other evidence that is satisfactory to the department indicating that he or she has successfully completed in another state, country, or province a bow hunter education course recognized by the department may obtain an archer hunting license or crossbow hunting license.
(3) A person who successfully completes basic training in the U.S. armed forces, reserves or national guard may obtain an approval authorizing hunting.
(4) A person who is subject to sub. (1) may prove compliance with sub. (1) when submitting an application for an approval authorizing hunting by presenting any of the following:
(a) His or her certificate of accomplishment issued under s. 29.591.
(b) An approval authorizing hunting that was issued to him or her under this chapter within 365 days before submitting the application.
(c) An approval authorizing hunting that was issued to him or her under this chapter for a hunting season that ended within 365 days before submitting the application.
To my knowledge, Kyle did not possess a "certificate of accomplishment" as issued under Wisconsin Statute 29.591, or a certificate satisfactory to the Wisconsin DNR indicating successful completion of a hunter education course in another state.