One of the goals of the German 1968 movement was the sexual liberation of children. For some, this meant overcoming all sexual inhibitions, creating a climate in which even pedophilia was considered progressive.
Take this as representative:
In his 1975 autobiographical book "Der Grosse Basar" (The Great Bazaar), Green Party politician Daniel Cohn-Bendit describes his experiences as a teacher in a Kinderladen in Frankfurt. When the children entrusted to his care opened his fly and began stroking his penis, he writes, "I was usually quite taken aback. My reactions varied, depending on the circumstances."
Maybe I'm old fashioned but I can't imagine a circumstance where any normal adult male would not be taken aback at a child "stroking his penis".