Because as you Mature (irregaurdless of Age or Era). You'll see that it's not worth living life as a "nikka" foreal.
Saying anything else doesn't make you Young or "the voice of the youth" or Black or Real. It makes you ignorant one way or another.
Most black men and women from the Hood don't grow up to be Grandpa and Grandma O.G. on some project junkie type shyt. Most of us still frown on that type of behavior and I don't see that completely changing any time soon for Our People. In the world of Entertaining, sure. But in the world of real life...

. Even though some of us are just born & bread for that type of life. But few and far in between foreal. Old nikkaz usually get comfortable [for one reason or another] and fall back. They wanna be Husbands, Players, Husbands/Players, and most importantly Role Models, not "nikkaz"
Felonies, Friends, & fukkin can completely influence your life and predicaments. But that doesn't mean that a nikka wants to be a "nikka" his whole life. That's some hip hop shyt foreal.
We can talk Bars, Melodies, Chords, Keyboards, Drums, Octaves, Progressions & Scales & rests all day long. But that doesn't mean I want to hear "nikka" every other Bar or in alot of cases, every other word, regardless of who got that oil or who pushing the biggest social reforms for the better. It doesn't matter to me.
What matters to me is the authenticity. Everybody and they Mama (literally) already knows the true history & context of the word. So why try to keep on legitimizing it [like sheep] knowing damn well if somebody else used it regardless of context or intent would make you feel mad uncomfortable or upset?
I was lookin at Papoose talk about it the other day. And I think up until that point he had thought about it before in his head. But he actually never really got around to saying it out loud in front of a diverse group of people. And in that moment I think he finally realized just how unworkable that whole concept is when it comes to really trying to translate that into Society. Even if it's just small pockets of it.