I was talking about the early age when it started happening and had no clue about it. Although the act has no harm itself for the above purpose it can lead to over indulgence and worse yet addiction with terrible consequences.
I heard people around me saying that my voice was changing but I could never notice that myself 
Well there was a great deal of pain involved in “growing up”.
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You know all those fights in school or in the neighbourhood, learning to be street smart and then “those injuries” during cricket (ball hitting balls) :(. That was not easy you see. In fact that last one can compete with any pain that girls go through.
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May be if you ask specific Qs like Niksik, more guys will be willing to answer.
but would you not agree that some of the info. you pull together from friends that age and other unreliable sources could actually be harmful. Not talking about sex education in the school.
Like guys here are asking for best sex change procedures.