> As I see it, part of parenting should be telling your children what's not good for them and why.

We tell our kids that smoking is bad for them. It's still illegal to sell cigarettes to minors.

> As a kid, if I had seen a case of beer left out I wouldn't have gotten drunk because I wouldn't have wanted to.

Good for you, and neither would I, but that's because I'm a wet blanket (still don't drink today). Selling alcohol to kids and teenagers is still illegal.