33 y.o. Dad of 3, and a far better engineer since having kids. Since becoming a Dad, I learnt the value of time, I learnt how to get stuff finished when I have a chance to, I learnt empathy and tolerance, I learnt to look at the big picture. I forgot about many of the frustrations and angst that I felt before I had kids. I simply don't have time to worry about my own feelings much, but at the same time I learnt to look after myself much more efficiently, because I have to, because 3 kids and a wife depend on me. I've never been happier at work, because I have a family.

Definitely start a family, but also think about keeping your career too in what ever form suits you.