Terry, good to hear my concerns aren't unique. In a similar vein as your post, it seems like there is a lack of single Catholics of marrying/childbearing age. Our Young Adults ministry recently folded due to lack of participation. I am one of four Catholics at work. Two don't attend regular mass, and don't take our obligations as Catholics seriously. This Behavior Is Very Disheartening For A New Catholic To See!!
I try to attend mass during the week and on Sundays. Today is not shaping up to be my day, due to rotating shift work, but I try to be consistent and find that life is out of balance when I fail to attend mass frequently.
I think nondenominational Protestant churches have become the norm for folks in my age bracket (40 and under) these days. Seems those churches have the active singles' groups and largest congregations. Sad, really, because there is such beauty in Catholicism and building a relationship/family upon this great faith.