Daddy or Grandpa?  All I know is that after a weekend with a 3 year and 4 year old I don’t have the energy to be a full time Mommy at 55.  Nope!! I’m so glad I had my kids when I was young!!  Some of our favorite male celebrities entered the realm of new fatherhood after turning 50. From Alec Baldwin, to Bruce Willis to Steve Martin, let’s take a look at 10 celebrities who became new dads after turning 50. Alec Baldwin: 30 Rock star Alec Baldwin and wife Hilaria Baldwin, 29, expect their first child together this summer. And it sounds like the 55-year-old actor can’t wait to embrace new fatherhood again. “My dream is to…