It’s a bit complicated to get the equipment and training to learn how to do this; maybe that effort is better allocated to just encouraging people to get up and go for a walk every once in a while.
This method has been used for decades and the results on the obesity rates do not seem to be very good so far. Maybe it's time to try other approaches.
I'm much more optimistic about pharmaceutical approaches to combating the obesity epidemic at this point. The current cultural direction on this may shift at some point however.
Fair point, and I do agree that pharmaceutical approaches seem more likely to reach more people affected by this problem. My broader point was that the simplistic "just be more active" seem ineffective... and in my experience in some cases even counterproductive, so providing more alternative routes to healthier lifestyles makes sense to me, as complicated as they may seem, maybe they will be more convincing/enticing than what we currently do.