well since you gave an honest answer I’ll just say this: I don’t think anybody under the age of 21 should use Marijuana.
I think it’s damaging the most to those under 21 as it interferes with the ability to learn — and I’m not particularly talking the 3 R’s. I think it interferes with social skills we pick up during those years.
Perhaps there are those who want children that age to use marijuana so they’re impressionable to socialists indoctrinations by pie in the sky social theories from poorly educated teachers. Maybe it’s getting them stoned and telling them “gay is okay, natural, normal”, or “Global Warming”, or “Global Market”, or “1000 points of light”, “New World order” — everything but educational fundamentals like reading, writing and math and the intellectual competition that occurs during those years.
You are correct, and there is good evidence that use of marijuana in the teen and young adult years is especially problematic, with even a month of regular use risking permanent damage.