It comes down to selfishness. People want what they want. When they put their desires above all others, including their spouse, kids, or God, then they will do whatever they think will make them happy. There is pleasure in sin, at least for a season. The lust of the eye, lust of the flesh, and the pride of life are the root causes of really bad behavior..

I think it is hogwash to blame one's actions on another. Each one is responsible for their own actions.

Years ago, my friend offered his young daughter a candy bar now or a car when she is 16. What do you think she took? Yep, the candy bar. A LOT of people are trading candy bars for cars.