Throughout history, various tribes have used beatings in order for their young men to prove their toughness and courage. The Spartans, for example, appeared to do little else but beat their children, a process that ensured that any who survived to adulthood would be pretty tough.
"FLY OR PERISH."
The Matis people from the Amazon have a similar ritual called mariwin, in which village elders dress themselves up as important spirits, enter the village, and whip people. They whip children if the children are naughty, they whip warriors to make the warriors stronger, and they whip pregnant women to make the babies stronger. Obviously, we don't see this too much anymore, and certainly not officially, as we've collectively decided that we prefer our adolescents doughy.
"Man, why am I taking so much guff in this article?"