Zuhl3156
IDK, I found my son if that's what you mean by main story line. I try to explore and do all of the side missions available without commiting to anyone's cause or take their side. I find myself being closer and closer to being pushed into a corner though. I ran into a Courser by accident and completed one of the quests for 'Father' but not on purpose. Once you run into this Couser and are enagaged by him you can't abandon the quest.
And you mix it up here which is different than just doing the main story line. With over 400 hours worth of (that includes the main line) content and finishing it in just a couple of days doesn't make sense.
You mentioned son. I forgot that I had one too. LOL For me, I am having way too much fun just exploring and doing side quests.
Like you, I'm also playing neutral and am trying to go as far as I can before I have to join any faction.
While running across the enemy in general I have noticed that some have names and when I killed them I did not notice any information that said I failed a certain quest......yet.