I had this great big paragraph typed out, but it basically came down to this:
To a believer, religion is a truth, so there is no harm in teaching kids truth.
To an atheist, religion is a falsehood, so there is harm in teaching kids something that is not true.
Still, I wouldn't've minded if my parents told me I had a choice. >.>
Well, I know where you're coming from, but it's not like they told you you didn't is it? I know that's kind of a poor argument, but still.
Do you really expect young Nepy to have said "But mom and dad, don't I have any other choices?" And if he had, and his parents had replied "No, you do not," what was he supposed to do then?
Practically, most parents and families don't exactly take it well even when their fully-grown adult children have completely rational reasons for not following the parents' religion.
I do not know of any parents who bring their kids to services and present it as "I think this is the truth, but you should listen and consider what this religion has to say and decide for yourself; I will not be upset if you want to try other religions or if you do not choose the same path I've chosen" -- they probably exist, but they are probably also an extremely tiny minority.
Let's flip this on its head, though. What about if atheist parents teach their kids they have a choice, and one of their kids decides to become a Muslim? My hypocrisy-sense tingles whenever I hear people complain about parents teaching kids about anything they object to - all parents can ever do is teach what they think is the truth.
Why would the atheist parents' reaction be any different from that of a pair of Muslim parents teaching their kids they have a choice, and one of their kids deciding to become an atheist? It's not as though atheists have the market cornered on hypocrisy or moral outrage.
As for forcing kids to go to church, synagogue, the local mosque... we have children being forced to do all kinds of things they don't want, and things that may be a waste of time or even harmful. Children with poor self-esteem and physique being forced to go out for sports, which gets them picked on even more; children who'd rather be out playing with their friends being forced to learn the clarinet; children being left in a daycare all day because daddy's at work and mommy doesn't want to put up with them. I think being forced to attend a religious service once a week is kind of minor compared to these few examples. I've been to churches, mosques, synagogues, and some other kinds of religious gatherings, and I found it very educational. But because some people get all bent out of shape about religion in general, this gets blown out of proportion.
Any activity has the potential to be harmful; the atheist objection is that taking children to religious services is
always harmful. Believers obviously do not think that religion is harmful, and so for them this objection is going to be absurd and offensive.