This is not an act. Everyone has something they like to do. For me, it's surviving dangerous situations. And the world is becoming increasingly feminized.
It doesn't sound like a positive evolutionary trait. When I was 16 or so I'd swim like a mile out in the ocean to the sandbar in basically shark infested waters. Now I'd never do shit like that. The risk reward ratio is just not there. Probably doesn't help having watched a bunch of Youtube videos of people being attacked by sharks in kayaks in the ocean. That hippy bullshit about "sharks have no interest in humans" is a joke lol. Fucking hammerheads swim right up and attack the shit of kayaks even if they're smaller than the kayak is. Good luck if you're swimming instead.