Anyone moving to Germany needs to register their address in person with the local Meldebehörde within two weeks.

In Germany, every family has to have its own bank giro account / current account so that money for the family (e.g. wages, unemployment benefit (Arbeitslosengeld), income support benefits (Sozialhilfe), child benefit (Kindergeld)) can be transferred to this account.

Certificates and Translations | Recognition of qualifications from outside Germany

A foreign driving licence is only valid for six months from the time at which you register at your new address in Germany ...