It's a bit difficult to tell from your comment what you meant by "Not that it matters much in a car-centric country". Do you mean that Austria is "car-centric"? Or that it isn't?

I grew up in America, Colorado to be more specific, and rode a bicycle all over my neighborhood (where there wasn't that much traffic) as a 7-12 year-old. Later, I biked to work in Chia-yi, Taiwan, where there was a bit more car traffic and then still later I did so from Mountain View to Palo Alto, when there was still more. In all cases, I found it very useful to be familiar with traffic rules!