I would suggest that what you're talking about is not education purely and simply; it's actually changing people's behaviours. Education is simply a component of that. The medical profession and the professions that are represented here are simply people who can provide the information. The ability to persuade someone to change or to get a person to alter what they're actually doing isn't one that necessarily resides in any one spot, and therein lies the complexity of the problem. There isn't the Harry Potter spell; you can't just wave your wand and—poof—everybody stops smoking.
It's taken probably more than 60 years to cut smoking down to a level where it now is no longer cool, most people don't, and you can actually go and sit in a restaurant without gasping for air. And it's great. But you go back to the fifties or the time when I was a kid and that was very unusual. You went out to a restaurant and the place was filled with smoke. That's the example, and you see how hard it is to get that change. It's taken 60 years.
So the kind of change you're looking at may not actually occur in a shorter period of time, but the facts of the case are that if you don't make the effort now and start on that first step on what is actually a very long journey.... And it really probably doesn't matter where you start, but kindergarten may be as good a place as any.