I have very, very severe maladaptive daydreaming and it is absolutely a form of disassociation for me. I was abused as a child by my parents and underserved by schools - there was no way out so I learned how to entertain myself doing nothing because anything I did would be 'wrong' and punished.

As an adult it's pain coping - I have multiple sclerosis and of course I don't want to be present in my body: It HURTS here. I am also poor (see: disability) + in my 30s with no kids, so not much of a social life or benefit from being present.

I spend most/all of my time at least somewhat disassociated. It's my default state.

Yea I've been diagnosed with dissociation and its one of my methods so worth not writing off as a check-in. That said it can be either and both, isn't mental health fun :D

The first time I became aware of my tendencies to daydream was a very hard time of my childhood, and if it wouldn't for video games overstimulating me (which I don't consider them a good thing in excess, but I digress), I cannot even begin to imagine the things I would be doing to avoid pretty much everything back then.