Overall do you think the banjo is a hard instrument to learn?
It’s very easy to learn how to make nice music on a banjo. Only four strings to fret, and easy strums available. A simple TITM roll makes a good sound for accompaniment.
To play Scruggs style, I’d say that’s hard. It takes determination and a focused commitment. I compare it to learning a foreign language (with your hand, not your mouth).
Enjoy your music,