Even when I used to have long trips between planets I was usually planning, or training, something to keep me busy.
It really does.
It is a vulnerability - but it doesn't have to be a weakness. The Jedi of old didn't care for attachment, but that led to its own set of problems, even for a group dedicated to protection and justice in the galaxy. I think Luke was right to turn the new order a different direction on that count even if it's not always been an easy path for me.