This is because they will go through mandatory schooling (if they don't the kids will be taken away from the parents) which provides ample time for socialisatio

This is because they will go through mandatory schooling (if they don't the kids will be taken away from the parents) which provides ample time for socialisation into our society and learning our rules, customs, culture and language. At least if our school system isn't a total failure like it already is in some areas. Now imagine how well some guy will fit that comes here in his thirties only knowing Sharia law, cruel physical punishment and who is used to subjugate women by force if necessary. It is not his skin color or genes that will likely cause him to be a problem in our society, it is the culture he grew up in that had him internalise these rules as being the just way to live your life. Edit: And of course local people are privileged in this regard. Why shouldn't they? They were most likely raised by citizens who paid taxes and worked on improving their society. It would be kind of crazy to then forcefully send their children away.