Anticonceptional techniques are IMHO the game changer. Humans have always tried to limit their offspring. Once it was possible without extreme measures, parents

Anticonceptional techniques are IMHO the game changer. Humans have always tried to limit their offspring. Once it was possible without extreme measures, parents prefer to pour more resources on fewer kids. My wife haven't worked out a single day in life, and haven't ever taken a single anticonceptional pill, either. The only thing we agreed without discussion in our marriage was having a single kid. I went to vasectomy the month after my son was born.