There are few more seismic choices in life than whether or not you choose to have children, and as a result, it's rarely a topic that people can be balanced and normal about. There are plenty of entitled parents out there who become completely insufferable when anybody has the gall to say they don't want to follow their lead, and some childfree people who can't believe that kids get to exist at all.
It was the first group that was causing a stink on Twitter recently, reacting to a Seth Rogen quote where he talked about why he and his wife decided not to have kids. The whole thing underlined what a crazy argument that babies can become, with many questioning what the big issue is. No matter what your opinion is, I think it's fair to say that it is better that this is a decision you regret not doing rather than the other way around.