I'm not sure I understood you, but I guess you want to say that there is no point in finding young players if we won't play them?
The top talents will get a lot of minutes. Del Piero was a regular starter at 20, Trezeguet at 22, Chiellini at 21, Buffon at 23, Ibrahimovic at 23, Pogba at 20, Zambrotta at 22, even Morata can be considered a big talent (he was a regular at 22), De Ligt at 20, Dybala at 22.
You can hardly find a young top talent and future star who wasn't a regular for Juve. Only Henry, who still played a lot. Maybe Coman.
It's not about not giving a chance to youngsters. It's about not being able to discover quality youngsters.
Look at the people thrilled by Fagioli. He is 22. Older or same age as most of the players I mentioned above. Do you see him developing like them? Some years ago people went crazy that we sold Kean just to bring back Higuain. Are you folks aware about the quality difference between those two? People were crazy for young Rugani, young Marco Motta.
People are crazy about youth, because youth didn't have time to disappoint them. But once we give a lot of minutes to these young players, people start hating on them, because most of the time they suck. We suck, We can't find great young talents