Comment by bruce511

Behavior is remarkably hard to change. Smoking kills you, but people still smoke. Remarkably people still take up smoking.

People like sugar, and the effects of that are well understood, yet we still eat it (some in more moderation than others) because, well, it tastes good.

Behavior can be a habitual. It can be hormonal or chemical. You might get a few people to change a habit - but you've got no chance with the others.

You might get one person to change, but if your product requires a group, ie social behavior, you've got no chance.

It's good that you recognize that behavior needs to change. It's good that you understand this will be the hardest part of the problem.

I'm not optimistic- but it is possible IF (very big if) the payback to the user is high.

Good luck.