I thought this was the most interesting thing.
In the opinion of the UDV, high-speed pedelecs (up to 45 km/h) must be viewed in the same way as a moped (category L1e), as defined by European Directive 2002/24/EC, and all the technical consequences of that must therefore be taken into account. That means, for example, that a type approval is required, insurance is mandatory (evidence of insurance must thus be displayed on the vehicle), and a moped driving license is required. In addition, they must be ridden on the road, and the rider is required to wear a suitable protective helmet pursuant to section 21a of the German road traffic regulations (StVO). That means a motorcycle helmet in this case.
and
The high-speed pedelecs currently on the market do not meet these requirements. This is now the subject of intense debate among experts and politicians.
Which means even in Germany there are doubts about the safety aspects of "S" class bikes