As someone who started by 'reading the internet', I concur.
Too much misinformation. Too many contradictory ideas (that often all work in their own right).
Find a few good books, get your son to read them. Introduce him to the world of lifting online once he has enough experience to sift through the information. I wasted so much time with gimmicks because a website wanted me to think that their articles were better, or because a company wanted to sell me a pill.
With that being said, lifting is also about the journey, and the online lifting community can be quite fun, interesting and entertaining. Some of the youtube channels make for great comedy, whilst others still provide motivation for lifting and life in general. If there's no particular rush for results, there isn't necessarily a good reason for him to be so stoic. Even though the internet's fitness advice often wasted my time, it was also time that I enjoyed wasting -- and isn't that what a hobby is about?