Makes a lot of sense - I once read that a defining parameter to determine addiction is how it affects relationships. Addicted people often fight and eschew relationship in favour of their addiction. I am reminded of this often when I see kids fight with their parents about how much time the spend on their phones / tablets / computers instead of doing other activities.
To be fair, some parents arent worth connecting with. I'm really happy for you if this isn't your personal experience.
Sure; if the custom in your family when faced with problems is to drink or drug, then it won't be surprising if you take the same approach.
My limited experience of people from flawlessly functional families is that they tend to be - um - boring. I find people's flaws and weaknesses make them more attractive and interesting. YMMV.
Like having at least one parent with some issue that leaves the child with trauma? This is most people's experience?