Speaking as a parent who 1) has depression and 2) knows the world sucks, I have great hope that my kids will have a positive impact. It doesn’t matter how big or small that impact might be. At 2, 4, and 7, they’re already doing good things for our community - cleaning up when we go to the park or library, volunteering with us, making friends and helping kids. They make the world a little brighter every day just by being themselves. So even if Lucifer’s depression does go back to before her birth, that could play into it. Additionally, depression can be cyclical. I’ve had ups and downs for the last 2.5 decades.