So, as a middle-aged childless man you resent having to pay for maternity care or kids' dental care. Shouldn't turnabout be fair play? Shouldn't pregnant women and kids be able to say, "Fine, but in that case why should we have to pay for your Viagra, or prostate cancer tests, or the heart attack and high blood pressure you are many times more likely to suffer from than we are?" Once you start down that road, it's hard to know where to stop. If you slice and dice risks, eventually you don't have a risk pool at all, and the whole idea of insurance falls apart.