At this point in my life, I'd be fine if I had a SO who had a kid, just so I can dote on them myself. I'd rather spoil other peoples kids than have my own.
I like "5. You are more likely to be an engaged and involved aunt or uncle because you are not jaded and worn down by your own kids" --- this is true. If I lived in Memphis, TN, I'd ruin the dinner of my oldest nephew because I'd take him out shopping and grab treats and the like. I said to my sis Allie that Jeri would have the boys, Allie would have the twins and I'd have NO kids so I could spoil theirs instead.
And at this point, it's best for me to remain childfree... with my lack of finances, I'd starve my kid. And with me getting birth control through the health department, I'm sure they're delighted to be giving me several months of contraceptive pills versus having to worry about one more welfare baby.