If I were to coach a beginner who had a hard work ethic to become a high level player, I would advise against looking at the OB during the shot execution.
The reason is that looking at the OB tends to encourage the player to make adjustments during the final stroke phase....swiping the CB left or right to make the pot.
I think there are important benefits in being more disciplined in pre-shot alignment, and trusting that alignment when making that final stroke, rather than second guessing.
That said, almost all great players honed their skills with such second guessing looking at the OB last. But then again. almost all good golfers learned to play lifting their heads quickly after their hit, trying to see where the ball was going. Point being, just cause it's a common and natural tendency, doesn't mean it's necessarily the best way to go.
Colin