For how long will the hobby organiser keep my data and that of my underage child?

Personal data may only be stored for as long as their processing is necessary. This storage period varies by type of personal data, and there is no single time limit for all kinds of data. To illustrate these different storage periods, let us look at a child’s allergy information and membership fees. Storing the allergy information of a minor is seldom necessary after they have quit the hobby, but storing the information on their membership fees may be. But the hobby organiser serving as the controller should have a defined storage period for payment data too.