Not meaning to hijack the thread to a philosophical discussion which is off-topic, but I couldn’t let this pass by, and I’m surprised that it hasn’t been addressed thus far.
I’m sorry, but no. The children are not mistakes, the situations in which they are being raised are. The situations can be changed, but there is no one whose existence is an error.
It is fine to advocate on behalf of yourself and others like you who have chosen not to have children. I firmly agree that it is a choice which deserves as much respect as its opposite and committed CFer’s ought not be on the receiving end of insults or endless “oh one day…” commentary from those around them.
But having made that choice, for whatever reason, does not give you the liberty to comment on the appropriateness of anyone’s existence, or the parenting styles and choices of those around you who do have children.
You get what you give; if you want your childfree choice to be respected, you have to give respect – to those who haven’t made that choice, and to their children who, in their childhood years, have nothing to do with the argument either way.