I wrote this to a friend of mine and wanted to pass it on. Maybe someone else will find it resonates:
One thing I wanted to comment on is your love for children and regret that you've never had any.
I've said this many times to friends of mine who regret not having had children: the world has need for your parenting, and will NOT LET YOU have that feeling in your heart go unexpressed and unused. Keep your eyes open. This may sound too flaky spiritualistic, but I really do believe that the universe does not allow parental love to go wasted. Maybe you'll give money to UNICEF. Maybe you'll become a big brother or sister. Maybe, and this is very likely, some young person will really, really NEED you someday. Whatever happens, cherish that part of your heart that loves children and the universe will find a way for you to spend that love.
And a special comment to the men out there (yes, KO, you too): also remember that when our youngest child was born, Mr. Blue Gal was 63 1/2 (and delighted by the news). There's also Tony Randall, Clint Eastwood, Larry King, The Donald, etc. Old man, keep the condom on if you don't want kids. Just saying.
(Incidentally I'm not suggesting that everyone without kids regrets that decision. One thing you learn when you become a parent is that parenthood is NOT for everybody. As I said to one girlfriend, "No kids? You're just lucky, I guess." The friend to whom I wrote this did regret. And I know that love for kids will find a home. That's all.)