Well said. But one has to start somewhere. For many people, even to consider NFP requires a huge change in perspective. "You mean there are moral requirements in the use of our sexuality, besides 'Thou shalt not get caught with thy neighbor's wife'?"
And then there's another conversion required to recognize children as a positive element, rather than a burden, and to commit to sacrifice in marriage and parenthood. Man doesn't want his wife to breastfeed, because it inconveniences him, or interferes with her job. (I know this man.) Man (or woman) insists babies be put in daycare at 6 weeks, because lifestyle requires two incomes. Wife won't nurse babies because she expects a two-week vacation (alone) each year. (I know this woman.) There are so many levels of cultural expectations, and personal sin, to be overcome
On the one hand, you have to agree with Maximilian, the spirit of family limitation, aka "the contraceptive mentality," is simply not Catholic, not virtuous, not generous, not sacrificial. On the other hand, it can be very difficult for people even to start going in the right direction.
There's a huge, unmeet need for appropriate instruction and formation in this area, emphasizing "positives." The GIFT of children, the GIFT of sacrifice, the GIFT of (relative) poverty, etc. Kimberly Hahn's new book, "Life-Giving Love," is an excellent resource. It really disturbs me that other Catholics are so surprised at my family (going on 7 children, oldest is 12, two miscarriages). I know there are plenty of legitimate reasons - infertility, or "grave reasons" for avoiding conception, unknown to me - for people to have smaller families, but the fact that they are astonished at our really-not-that-large family (I know a couple with 11 children, oldest is 12; another with 14 children, oldest is 15 ...) suggests that they've made a deliberate decision to severely limit their family, and simply don't give it any thought from a moral standpoint.
My wife and I were just discussing this today. I'm always happy when someone asks me about the size of our family because it opens an opportunity for evangelization. But I don't get such opportunities very often, whereas my wife can hardly go out in public without someone making a tactless remark, which makes her a bit less patient and charitable.
What we were discussing is that our family is considered extremely large, but we didn't do anything extraordinary, either by choice like bottle-feeding which will space children more closely together, or involuntarily like having twins or triplets. We just kept having another kid every 2 years. It didn't seem like anything special. But now without even trying we've had more kids than most of the big families we grew up with in the sixties. Even among Catholic supporters of a pro-life mentality, having a dozen kids is considered extreme, but the reality is that under normal circumstances it's hard to avoid doing so.