This point often comes up in debate: the atheist will claim that teaching your children that your religion is true is indoctrination. They will claim that we should tell our children that our beliefs are merely one among many, or that we should present our beliefs and let our children decide for themselves.
I think for the Christian to do that would be child abuse, or at the very least neglect.
Consider this analogy: should I teach my sons to treat women as being equally valuable to men?
The atheist cannot say “no”. Of course we should teach them that, we should teach them common decency and morality and how to be good people. We shouldn’t leave open to them the option of treating women poorly. We should explain to them why we must treat women as being equally valuable (they are as much persons as you are, etc.) but in the end, they must accept our answer here. Any other answer is unacceptable, and they will be punished for it if they don’t treat women well.
The atheist might say “but we are sure about women being equally valuable to men, we are not sure about religion”. But of course, the Christian is sure about religion. The atheist, if atheism is true, is right in saying that we shouldn’t teach children to be Christians. We shouldn’t teach them false things. But of course the atheist can’t assume atheism to be true to make their point, they are attempting to convince me, a Christian. And if Christianity is true, and if we are sure of it (as I am), then this argument fails.
The atheist might attempt to sidestep this and suggest that since people disagree about religion, even if we are confident ourselves we shouldn’t teach it. But they leave themselves open to the obvious response: people disagree about treating women equally too. Lots of them. I am sure you’ve probably noticed that.
Finally, the atheist says that gender equality is based on reason and evidence, and we present this to our children. While we just force our children to believe Christianity without presenting any reason or evidence. But of course that is false, a good Christian parent is one who makes a compelling age-appropriate case for Christianity. Not only with arguments, but with how they live their own life, full of love and holiness and obedience.
So where does the atheist go from here? Can they make a case that we should teach our sons to treat women as being equally valuable to men, while we should not teach them to follow Christ? I do not think the atheist can make this case.