It's generally people from poorer strata's in society or from areas of the world where breeding is seen as a way to ensure survival (akin to Victorian Europe I guess where the poor would have many children and send them out to work).
Issue in rich countries is that obviously breeding for survival is no longer needed as survival is more or less guaranteed so long as you are healthy and don't get into an accident or anything.
Unfortunately I don't have any statistics to back up the claim that families who are Muslim tend to have more children, but anecdotally I can certainly say it's true. I live near a women's hospital and the vast majority of people I see in or outside it are families who adhere to Islam, and they almost always have 4 or 5+ children+ a very large extended family around them .
Issue in rich countries is that obviously breeding for survival is no longer needed as survival is more or less guaranteed so long as you are healthy and don't get into an accident or anything.
Unfortunately I don't have any statistics to back up the claim that families who are Muslim tend to have more children, but anecdotally I can certainly say it's true. I live near a women's hospital and the vast majority of people I see in or outside it are families who adhere to Islam, and they almost always have 4 or 5+ children+ a very large extended family around them .