Don’t fall into the stereotypical startup trap of regularly working crazy hours. Use your experience to do your work in a reasonable amount of time so you can still have a life with your family. You’ll be happier and the youngsters just may learn a thing from you about working efficiently and having a life away from work.
“... being more experienced, professional, and efficient makes up for long hours.” Anonymous
“Use your maturity to avoid being the 16-hour-per-day programmer.” Anonymous
“I would rather have a guy who is excited, happy, and engaged, outdoing the younger kids and showing how it gets done, all while having that WLB (work-life balance).” Anonymous