male lions have manes because:
First, it makes him look larger and stronger than he really is. This may make an intruder leave without fighting. Second, the mane helps protect the lion while fighting. The long, thick hair around its head, neck, and shoulders softens the blows of its enemy. a lion without a mane may not survive long because he would not have the initial scare tactic to prevent fighting in the first place, then when another lion attacks, he would not have the protection of a vital area.
humans have done this. in history, many leaders would dress with elaborite attire to prevent challeges. in modern times, people get intimidated by the large flak jackets our troops wear.
I dont smoke cigarettes because i like them. I smoke because it hides the smell of marijuana thats seeping into the hallway atm.