There are many reasons to choose to live child-free. Some very valid reasons are overpopulation, living with a smaller footprint on the planet, and not wanting to raise fodder for the war machine. Choose from these t-shirts and get the word out.
You've made the difficult but wise decision to remain child-free. Now you have to avoid the pitfalls of dating those who feel it is their purpose in life to breed. Here's your t-shirt. "Not parent material. Not now. Not ever."