The backdrop is different but the premise still reminds me of Only the Strong. Kids learning martial arts to better themselves from a mentor that pushed them to be better. That is how I make the connection.
BTW, the kids in the barrio also had nothing but time on their hands.
Try to look at things from other points of view in the future and try not to be so quick to put down other people's opinions.
Cordially yours,
冠木侍 (KS)
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"Jiu mo gwai gwaai faai dei zau" (妖魔鬼怪快哋走) -- The venerable Uncle Chan
"A fool with a sword is more dangerous than any weapon..."
“If your actions inspire others to dream more, learn more, do more and become more, you are a leader.”--John Quincy Adams
"If you have an unconquerable calmness, you can overcome the enemy without force" -Bushi Matsumura