Interesting article. However, I hate when writers get away with this:
The conclusion is not necessarily supported by the preceding evidence. For all we know the data could be moving the other way. The number of children in foster homes could be falling.
Personally, I am a happy parent. But, I would never suggest to anyone that parenthood would make them happier. It very well may, but it also might not.
Contraception should be accessible to all. Few things are more tragic than an unwanted child.