Sometimes it seems like tomorrow can be something to think about

if caring about health issues / the environment is not that important to you.

If you don't really care that much about health issues and the environment, well, maybe some of  your kids or grandkids will care more than you did.

Because the way things are going...more and more people will be affected by these issues as time goes on...and then, as even more people are affected, it will be many peoples' issue instead of just something that affects a fraction of the people?