Using GoPro during sport

1.For which kind of sport do you use a GoPro?
2.How often do you do this kind of sports?
3.Which kind of helmet do you use?
4.Where do you mount your GoPro?
5.For what do you use mainly a GoPro?
6.Does something about the GoPro disturb you?
7.What is your highest education?
Current Progress,
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