From my personal experience, for the majority of people, I would recommend to stay away from classic body building weight trainning. I trainned that way for several years in my early twenties (back then, I was even a certified body bulding trainner) and the overload in my joints was a recipe for disaster + the kind of body I developed was disfunctional for activities other than weights themselves. The excercises I've…
May I know what you are referring to as the "classic body building" exercises. To me the classic ones are squat, bench and deadlift. I am curious why you think it's a disaster.
I competed in powerlifting in my 20s; my life revolved around squat/bench/deadlift. I enjoyed it, but yeah, he's right: training like that is very specific, like anything else, I suppose. I could squat, bench and deadlift a ton, but literally anyone could beat me walking up the stairs, or even arm-wrestling. The first time I tried CrossFit, it nearly killed me. And yeah, powerlifting tore my body to shit. Back then, the only time I wasn't in pain, was when I was lifting.