Basically this. I was going to contrast a couple of (heavily anonymized) employees we just hired - a smart but inexperienced twenty something and a smart and very experienced 40 something, when I just remembered that I'd run into the 20 something at the office on a Sunday.

I was just there to show the new office and some of our toys to my girlfriend, he was there because he was really excited about the job and just wanted to really kill it.

Twenty year olds generally haven't figured out what really matters in life, especially when it comes to work life balance. That's a valuable asset to most companies.

I told the kid to go home and have some fun, but I don't think he did. Later that day the 40-year old posted a picture in slack of him flying a drone with his kids, and just looking happy as a clam in mud.