Something that I found interesting is that the Yoda scene in this movie implies that Yoda hasn’t spoken to Luke in 30 years.
[Yoda said:]
Luke, the Force runs strong in your family. Pass on what you have learned, Luke…[Yoda said:]
Heeded my words not, did you? Pass on what you have learned.I wonder if Kenobi also gave him the silent treatment.
It’s possible they haven’t, but I don’t think that line necessarily implies that.