He has literally said exactly why. He's not going to be around forever, or even much longer now from the looks of it. If his grandkids relied on him, they'd never learn to stand on their own.
>Grandpa's max level ninpo.
>Wait all series for DadNinger
>Just Red with a different sash
God damn it John Toei
>mfw they finally get it and tell Gramps to fuck off with his " one path to become ultimate ninja" gig.
Billy should have listened to his grandpa and killed him to become the Last Ninja instead.
Only have a few webms, had to catch up so here's from 43, didn't see anything I wanted in 44.