They rush up to him sometimes after a poetry reading, wanting to talk – not just because Billy Collins is a beloved former U.S. poet laureate, but because he is a poet who once began his autobiographical poem “Only Child” with the simple declaration: I never wished for a sibling, boy or girl. “I come across a lot of people who say, ‘Oh, I was an only child,’ or, ‘I have an only child,’ and they’re concerned about this,” Collins says.