I can teach u why
cause since they reach puberty of both males and females they desire to lust increase gradually it's due to their high amount of hormones in males they got testosterone which is also cause to energy,hesitate to give up something that's also responsible to their rush behavior so they tend to obey their hormones. due to their high sexual desire they try to have sex with women but due to cultural reasons they can't just go and do sex with anyone like in african countries or western countries therefore that reason males select the shortest way to fulfill their desire which is watch pornos
so they can satisfy themselves after ejaculating the semen.
but remember if males don't watch porns and stop masturbating once done it it's very hard to stop or u probably see wet dreams and ejaculate automatically on the bed.
it doesn't affect to women so much cause their sexual desire is relatively lower than males but they can have sexual desire once they done sex.
it likes burn in ur vagina. so u tend to satisfy your self from finger in u.
I think it's a natural think that's why nature trick all of us in this lust realms.
if u understand the truth and meaningless of all those things u probably can reach the Nirvana by understanding the 4 great truths.
don't believe what Christians and Islamic people said they are nothing and believe a fake religion. but of course it's hard to avoid from them
even for me .that's why I posted couple of threads regarding hot girls but there is something u can do that's avoid from as much as u can then finally u could reach the
Sovan state by doing meditation.