It's not inside focus that causes them- that's my point. It is driving and creating advantages that create fouls. Iagree that most shooting fouls happen in the paint, just not that an inside focus is what causes them.
And to me a drive from the wing or baseline is not an inside focus- it is the reason why outside focus works in real hoops, namely that if a gu can shoot and drive then the defense has to pick its poison- don't cover and jumpers get nailed. Go out tight and get blwon by on the way to a layup.
Once I scored a basket that still makes me laugh.