Ask the pope. He has no children either and is for sure Christian. Christians do not have to have children nessecarily.
Soon it will be overwhelmingly Muslim as the dominant religion through immigration and birth rate, and the world is witnessing the results that brings.
Muslim immigration has nearly come to an end. Most "new" muslims who come to Europe are brides that marry European muslim men. Why? Because they are submissive. The muslim girls who grew up in Europe adapted large parts of the European way of living. They are not obedient anymore. The next thing is that they found out -just like their Christian sisters- about the anti-baby-pill. Although it is true that muslim families usually have more kids than native European ones, we are talking about the question if a woman has 1, 2 or 3 kids. Larger families are extremely seldom since muslim men and women also like to live in wealth. Having many kids means to be poor.
In the Old Testament, one of the first commands given by God was to "be fruitful and multiply and replenish the Earth". Those who heed that will rule; those who don't will be ruled over.
It is indeed true that religion as a whole doesn't play a large role in the political and social life of Europe anymore. It is a private matter. To tell you the truth: We are dealing with this situation since the beginning 70ties and we are doing fine.
People who are talking about "Eurarabia" are usually not very well informed. Europe indeed has a problem with things like the recent cartoon discussion. The solution to such stuff is quite simple: We have to kick those out, who refuse to arrange themselves with our system. I like the recent developments since they will trigger a much harder actions on those Muslims who want to damage our society. Anyway - any panic about Eurarabia is BS.
Europe needs immigration from educated and intelligent people. I absolutely do not care about their religion as long as they behave.
Here in the U.S., there seems to be a trend amoung the younger generation to have more children. This is indeed good news. I myself fell into the belief that it is better to have a small family. I have two children. Now, at age 47 I regret that decision. I wish I would have had more. But I am heartened that the younger generation are having three and four children and are also returning to their Christian roots more than their parents. I for one am encouraging my children to have more than just two. Family is the most important thing; not jobs, homes, vacations, toys etc. On another encouraging note, here in the U.S., the conservative women have more children than their liberal counteparts; this is a win-win situation.
P.S. Islam and behavior are not always compatible.
What I fail to understand (in regards to many of the commenters) is why they have such issues with people's personal decisions? I don't judge others for wanting to have children and people shouldn't judge me (or other childfree people) for making this personal decision. Having a child is a HUGE decision to make and it shouldn't be made lightly...not everyone should have kids.