I played at fairly high level as a GK (you have to take a word for random guy on HN out of all places saying it) and it was common knowledge or something that w

I played at fairly high level as a GK (you have to take a word for random guy on HN out of all places saying it) and it was common knowledge or something that was being taught from young age at higher levels. Maybe I just thought sort of everyone knows it and pay for attention when I hear commentators /studio talking about it. But you can think of it how many penalties, or rather fouls against keeper, they give when keeper jumps into someone inside the six yard box - I don't have statistics at hand but bet tons of money 6 yard box vs penalty area.