As a parent of 2 boys (just under 2 & just over 4 year olds), I would say the hard part began at ~18 months with both our kids. Our oldest is now already much e

As a parent of 2 boys (just under 2 & just over 4 year olds), I would say the hard part began at ~18 months with both our kids. Our oldest is now already much easier than he was a year or 2 ago. first year was the easiest with both - the only real difficulty was the sleep deprivation.