Sorry for the late reply, RatedPG 😦
There are a few similar threads for introducing kids / partners / families / friends to Star Wars in the…
‘Viewing Orders & Watching Star Wars’ section of the An Index & Help Thread for General Star Wars Discussion
and in the…
‘Fandom / Watching the OT for the 1st time’ section of the An Index & Help Thread for Original Trilogy Discussion
I hope your nephew enjoyed the films - and that the info in the threads featured above may still be of some use 👍