Who can ever forget Tantrums & Tiaras when Elton was playing tennis, someone called out to him and he had a hissy fit, packed up and went home? That isn't a person who sounds ready to become a parent. Time changes and matures people, and now he feels ready to become a parent.
And good luck to him. It's obvious he and David adore Zachary.
Ah no, the funniest bit was when it got a bit too windy one night and he rang his manager in London to ask him to make it stop.