I am definitely glad I have tried certain drugs, however I don't think that means everyone I know must try them. It is like religion. I am sure someone who recently "found god" is pretty happy with that, but I don't think they should tell me that I must start attending church to do the same. Let them decide things in their own way. I know nobody has really disagreed with anything I said before here, but I just thought the whole religion comparison explains well how I feel about this.
Haha well put, anybody who can rock this place without them deserves a high five in my opinion. OP's friend sounds like he has a solid mindset.