Poker in schools is not going to happen. Chess is respected by everyone and is a game that demands logical and creative thinking to excel in; even if you think its a waste to teach in schools, for whatever reason, this is still true.
I think it would be healthy to have some chess teaching in elementary classes, and I'm not saying that just because I'm a chess player. If a large part of the population knew a few openings and enjoyed it as a past time, that would be healthy I think.
Maybe cause we might actually learn something about real life?
I know chess has taught me to deal with pressure. The first time I played with a chess clock I was terrible! But with time, I relax during my games and think things through. I reckon that's important in life.