"Ah, cara, I would not wish either of you never born. You're both too precious for that," Blaise told her gently. "I don't think I can wish that even with the curse being a suddenly very real thing."
His thumb caught a tear drop, and he felt his heart ache. He let his thoughts roll around for a moment before he started to speak. "I'm not sure how I feel about children of my own, but I like to think that life, no matter how short, is worthwhile in the end. Would it be selfish? I don't think so. In some ways, if you look at it from the traditional point of view, it's selfish not to have children and pass on the legacy, even if there is a curse too. Of course, I don't buy into that either. But I think that you have love to give, and sometimes the best things in life come out of risks and gambles."
He tucked a lock of her hair behind her ear and sighed. It wasn't an easy question to answer, and he tried to think about his nephew and niece as he spoke, because it was possible that they'd be the closest thing he'd ever have to children. He was, perhaps, especially pessimistic about his future right now, but he wasn't letting that affect the advice he gave to her.
"Besides, there's more than curses that can strike any of us down, children or adult, every day. Hell, remember our childhoods?" Mad dark lord running around, families torn apart. Death. Several of their classmates hadn't survived it, and some who technically had weren't precisely all there all the time.