It's also a common defense against some other actual circumstance going on that is too difficult to handle, as is pulling away from people in general.
Interestingly, as we move out, we often change the set of people we interact with. Healthier or not, it does change the stimulus and environment in meaningful ways.
Daydreaming, to some extent, is a natural and common human experience, and it can serve various functions, such as providing an escape from the mundane or offering a way to process emotions and desires. Your account sheds light on how changes in our environment and daily life can impact the frequency and intensity of daydreaming.