My wife and I have two kids, we are both in the best shape of our lives, eat better than before, and our kids are quite healthy - participating in gymnastics, volleyball, and roller derby.
I could pay for a nanny or childcare of some sort for portions of the day and allow myself to focus on things like food quality, exercise, etc. I prefer to sacrifice those things to be with my kids whenever I am not working because I think it is important for me to invest that time now when they are most impressionable. But that preference isn't something I seem to have much control over. It's what I think is right, so I do it. I guess I could choose to do what I think is wrong, but that doesn't seem like a choice as much as a character failure.
Also, my kids are very young. As they get older, I expect to have more time. The early years are the absolute hardest in terms of time. It does get better as they get older and have activities to participate in outside the home.
Do not judge too harshly... it may not be personal choice.
Life is hard as parent but a variety of things can exacerbate problems such as: both husband and wife working, work place requires long travel, age gap between children, having children with special needs etcetra..
My wife and I have two kids, we are both in the best shape of our lives, eat better than before, and our kids are quite healthy - participating in gymnastics, volleyball, and roller derby.