Guten Tag,
German cyclists definitely have more right of way than American cyclists do. It is particularly noticable around campus. I guess that you have to consider the fact that in these instances, most of the time they aren't riding on bike paths, but on pedestrian walkways.
Strictly obeying stoplights is definitely not something that Americans do. Even our driving laws allow right turns on many red lights. While I can appreciate the safety reasons behind this strict obedience, in my own opinion, I don't deem that it is always neccesary. The example of the rebellious teenagers late at night waiting for the light to turn green is an instance where I would personally have just crossed the street if there really were no cars in sight. If there are little kids around, I can understand setting an example by not crossing. While an adult is perfectly capable of deciding when it is safe to cross the street, a little kid may not, so their obedience of crosswalks is more of a necessity than the obedience of an adult.
Ashley