It increases our chances of survival, so I guess we can blame on the DNA :)
Or it increased, I don't know. By having a family, you took care and was protected by people with similar background and interests. Dumping your wife in the past meant none would take care of your children, who were either laboring to increase home sweet home aggregated value or were your legacy, who would took your inheritance. It gave meaning to work today, because someone would use it after you're gone.
And people do some pretty hardcore stuff for love. War, even. I guess you need to justify that kind of behaviour later in your life. What good would be to sacrifice so much and forget about it next week?
Nowadays more people have their basic needs covered, and the concept of personal freedom is much more present. So you don't need a family to have a shelter or food on the table, and it's ok to do what's best for you, not for someone or something else.
Or it increased, I don't know. By having a family, you took care and was protected by people with similar background and interests. Dumping your wife in the past meant none would take care of your children, who were either laboring to increase home sweet home aggregated value or were your legacy, who would took your inheritance. It gave meaning to work today, because someone would use it after you're gone.
And people do some pretty hardcore stuff for love. War, even. I guess you need to justify that kind of behaviour later in your life. What good would be to sacrifice so much and forget about it next week?
Nowadays more people have their basic needs covered, and the concept of personal freedom is much more present. So you don't need a family to have a shelter or food on the table, and it's ok to do what's best for you, not for someone or something else.