Why do they carry the ball by the middle in rugby?

I've never played rugby but I played football in high school and when you carry the ball you hold it by tucking one point in your elbow and holding the other point in your hand. When I watch rugby on TV, they always carry the ball by the middle, or the round part of it. Seems as though it would be much easier... show more I've never played rugby but I played football in high school and when you carry the ball you hold it by tucking one point in your elbow and holding the other point in your hand. When I watch rugby on TV, they always carry the ball by the middle, or the round part of it. Seems as though it would be much easier to fumble it carrying it this way. Is there a regulation that you can't tuck it away like a football or what's the reason?
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