Agree with QofQ that it is very generous of the daily mail to feature a large family that isn't percived as a drain on the state. Although it wouldn't surprise me if they feature a mother of twelve tomorrow who lives on a council estate and claims £300,000 a year on state benefits so they can do a compare and contrast.
Like tarantula says as long as the kids are happy and well cared for there is no problem I am slightly envious that they can afford to do it although I would imagine their budgeting skills are more advanced than mine.
I would love a big family but we would be struggling to afford a second child never mind a 15th.