My sons spend 6-8 hours a week at football practice, so I get to meet a lot of parents.
There is a trail around the park where they practice as well as a tennis court. What do the parents do at practices? Sit on fabric chairs that are pushed to the limits trying to hold their gigantic bodies off of the ground.
Last week, one of the more obviously sedentary parents posted on social media that she would work out if she just had the time. Several of the other volumetrically challenged parents chimed in saying things like "I know, right?!"
The sedentary people would love to be fit, but as long as they can think of excuses, they will avoid working for it.