Humans are moving even stronger toward the K. People used to have many more children than they do now, and infant mortality was worse.
On top of that (for the child) taking a risk was worth it - if you didn't do really well, you did really badly.
These days things are more "even", a basic level of survival can be had easily, there is no reason to take big risks. The rewards for risk taking are more in terms of luxury than basic life.
Humans are moving even stronger toward the K. People used to have many more children than they do now, and infant mortality was worse.
On top of that (for the child) taking a risk was worth it - if you didn't do really well, you did really badly.
These days things are more "even", a basic level of survival can be had easily, there is no reason to take big risks. The rewards for risk taking are more in terms of luxury than basic life.