Yeah that person is way under informed, the kid card and the gateway argument are pretty lame. Kids will find a way to do what they want to do. HONEST education would go a long way to close the perceived gateway as well. When I was a young stoner I did try other stuff but it was partly because none of the crazy shit i was told that pot would do to me ever happened. so for a kid it's pretty easy to think, "hey, they lied about weed, I bet they lied about acid and speed too!"

The Society for a Drug Free America with their stupid BS commercials does more harm than good.