Quoting The Doctor:" Well..... it's not much of an agree or disagree thing... But in general, statistics show that to be true. But, of course, there are tons of exceptions to this "rule", if you will."
I was reading a journal this morning and every study/poll/survey I have ever supports that statement in the OP, but the author of this article was was trying to make a case that all those statistics are flawed.
I started thinking about our neighborhood, we live in an upper middle class area, where 98% of our neighbors own. Only a few families have 3 or more kids. The few houses that have been rented are all lower income families with 5 kids or so, and then the Baptist ( I think) family that has like 8 or 9.