Please note that the following answer only applies to clients residing in Germany, France, Spain and Netherlands.
All legal guardians need a Scalable account. Once your accounts are opened, you can proceed by creating a Kid’s account under Product Overview (double-tap Home) > Add New Product > Create a Kids' Account for my child.
Then, proceed by following the steps for the Scalable Broker for kids, upload the relevant required documents and your account will be ready.