I think that it would be protection. If he wears a helmet and watches out for traffic, there is a lower risk of him being run over or hurting himself badly when he falls of his bike. If he is mindful of pedestrians and uses hand signals, there is less of a chance that he will hit a pedestrian which could result in one or both of them getting hurt.
I think it is Theme
Hope it helps, Have a great day!
You learn what not to do and how to improve the situation if it happens again.
Answer:
あなたの兄弟の誕生日はいつですか？ or Anata no kyōdai no tanjōbi wa itsudesu ka?
Explanation:
It you mean Stalin "the religion and the opium of the people
