In the original draft I was 27 and Peter was 55 in the script. Thats not the same as a guy in his 40s and a dad in the end of his 70s. Its a different point in both our lives. – Paul Reiser
And in that time, I lost my dad and had kids of my own. It was like, OK, I get it now. I know what fatherhood is all about. And you look at your parents differently. – Paul Reiser