Juno Eclipse said:
Many fans only separate the novels and comic books into “Canon and Legends” from the old EU when Disney announced their thing in 2014. For me, my own head canon, there is also separation of the Jedi before/after 1999. The retcons of them after 1999 of no longer having family attachments, the interpretations of ‘compassion’, ‘love’, ‘fear’ (not a problem for Yoda in Empire), possessions, being separated from their parents, even uniforms (as Emre posted above). As well as the general disconnects between the two trilogies that George chose to introduce, all means it is a major obstacle to cohere the two.
The interregnum between TPM & AOTC was an interesting period for the EU, at least where the Jedi are concerned. In spite of the “no attachments” rule established in TPM, EU writers still assumed Jedi could be in romantic relationships, the most explicit example being Ki-Adi-Mundi, who has shown having multiple wives and children. In hindsight, you can see the tension between the pre-1999 & post-1999 lore. It was Schrödinger’s Star Wars.