Fair. I’m late 30s, my dad is 74 and can work circles around me. He definitely started manual labor young. I did some of it in high school but have been behind

Fair. I’m late 30s, my dad is 74 and can work circles around me. He definitely started manual labor young. I did some of it in high school but have been behind a desk since college. I do consider myself very fit/active, but it’s not the strength or stamina that’s the limiting factor, it’s the holding weight at weird angles, or applying torque, or just reaching out over my center of mass for hours. Anecdotally it seems like the specialists have it worst. His friends who did flooring all have wrecked knees, and the drywall hangers have messed up shoulders. He seems to have made it out unscathed, though other generalists he knows have back problems.