Why do you think Byron stops Larry dunn from giving Kenny a super maytag when Byron often plays similar tricks on Kenny himself?

Byron likely stops Larry from giving Kenny a super Maytag because he recognizes the potential for it to backfire and cause more harm than good. While Byron often plays tricks on Kenny out of brotherly love and a desire to toughen him up, he may see this particular prank as crossing a line that could lead to genuine embarrassment or distress for Kenny. Additionally, Byron might be trying to assert his role as the protective older brother, wanting to shield Kenny from experiences that he knows could be overwhelming.