Tim, my attitude and knowledge regarding the amount of protein that is optimal for the human being, only changed in 2016. Before that I was always conservative when it came to protein consumption. Granted that when I was weightlifting, I was eating plenty of protein, but went the opposite way when I took up bodybuilding. Looking back at it, I think it had something to do with trust, as I didn't trust the Weider muscle magazines with their push of everything protein. I did myself a disservice really, and it took me over 30 years to realise my mistake, as it took one man to persuade me regarding the benefits of protein, that man was doctor Donald Layman.
We grow and we learn, but I think the main thing worth noting, is to have a non judgmental attitude toward others who are not like us. You know the irony Tim, is that as competitive sportsman, we ought to revel in the fact that people (or our competition), does not follow what we believe to be optimal, this way the edge is maintained..., as I'm sure they'd be thinking likewise. Hence I say, each to his own.