I don't have a gym membership. I usually do a bit of basic yoga or stretches at home or in my dressing room before the show. I've done plank for 60 seconds almost every day since 2009, when I had to wear a bikini onstage in 'South Pacific.'
If you can be a good example to other people, why not try to be that person? I have a bit of a people pleaser in me, but not so much so that it's out of control.