The Nazi Party's youth organizations took over some of the elements of the Youth Movement, and engaged their members in activities similar to the adventures of the Boy Scouts, but also subjected them to ideological indoctrination. Some, but not all, of the White Rose members had enthusiastically joined the youth organizations of the Nazi party: Hans Scholl had joined the Hitler Youth, and Sophie Scholl was a member of the . Membership in both party youth organizations was compulsory for young Germans, although a few—such as Willi Graf, Otl Aicher, and Heinz Brenner—refused to join. Sophie and Hans' sister Inge Scholl reported about the initial enthusiasm of the young people for the Nazi youth organization, to their parents' dismay: