I learned backpacking in a formal setting as a teenager and I look back at that and am glad I had such a good start. I realize that nowadays, there are fewer chances at formal training. But as a poor teen, I would not have been able to even start if it were not for generous folks who donated their time to teach, donated their extra gear so we could go out and mentored us. I think if I had to start using the "trial and error" method, I would probably not stuck with it. I delivered advertising papers for a year to earn enough money to buy my first pair of boots. My mentors helped me select appropriate boots. Had I blindly bought inappropriate boots that would be the end of my trips! I do not think giving beginners information or advise on how to select gear is condensending. It will probably save them a bundle of money and may make the difference of them continuing to backpack or quitting.