I've seen the same thing. The perception is that the reward doesn't match the amount of effort required, and/or that the programs offered aren't going to do muc

I've seen the same thing. The perception is that the reward doesn't match the amount of effort required, and/or that the programs offered aren't going to do much for serious preexisting health issues (may or may not be true). And people who already like to exercise and like fitness aren't going to be motivated by what they might view as "newbie" programs. And then you get into the tangled mess of workplace interpersonal interactions and privacy issues. Does anyone want to spend even more time with their coworkers, if the program is hosted on premises? Does HR need to know that Employee #4752 wants to lose 10 pounds? Or that a different employee wants a stress reduction class? I like the idea mentioned elsewhere in the comments re: giving people a discount or other reward for proven gym attendance. That's easy enough. In my case, I'd be going to the gym, anyway, link my gym barcode to the plan and it's a done deal.