All he had to do is use it once, then have it for the rest of his life.And now that his chakra pool is greater without the sharingan, he can just spam it.
Madara had it without eyes in his eyesockets, why wouldn't Kakashi? Sasucke would be really jelly and have an ego burst.
Seriously speaking, Boruto is a money milk done by Samurai & CO.
Naruto series should have ended after the last shippuden episode.
Boruto is an easy money grab and it lacks that special thing Naruto had. The idea of the anime is smoked already, many character potential and stories are...