A number of criteria must be met before a firearms ownership license is issued: age 18 years (§ 4 WaffG), trustworthiness (§ 5 WaffG), personal adequacy (§ 6 WaffG), expert knowledge (§ 7 WaffG), and necessity (§ 8 WaffG). (https://en.m.wikipedia.org/wiki/Gun_control_in_Germany)
How's that working out for you, Krauts?