My... theory, I guees you could call it is that because we (as a people in general) are getting so sedentary/lazy that we will pass these traits along to our kids (my generation especially will be the ones.to.do this, so maybe 20 years is too short term. But yeah, say im an overweight 22 year old in the midwest. Recently married.to another twenty-something that is.also overweight. Seems pretty likely that our.kids would turn into fat shits as well since we never.taught them food.in moderation, exercise frequently, etc. Feel like this would compound like a mofo until people realize everyone is.dying at the age of 42 with massive heart attacks and strokes. Idk mega derail, my bad.