Every parent I know admits that they are constantly messing things up and letting things slip between the cracks, either intentionally or accidentally.
Obviously there are things that come up that necessitate long hours at times and work on evenings/weekends. But if that's a habit, it means a lot of your work is going to be consistently sub-par, either in terms of quality or productivity.
100% agree. Everyone knows law is not a 9 - 5 job, and it's one thing to be working 70+ hours a week occasionally because something unexpected came up, but I refuse to believe that anyone working 70+ hours a week on average is doing quality, efficient work that entire time.