I was looking at the "how to" videos by the Church. The very first one made me wonder.
https://www.youtube.com/watch?list=PLmYG2wryU3o2O0UZViCdgJyRvf146oK7i&time_continue=40&v=ukMClXNfv1U
It's about adjusting to "normal life" post-mission. I remember coming back off my mission and I didn't feel like I really had to "adjust" to anything. My brother informed me of some fashion changes so I couldn't wear certain clothes or wear them in certain ways. Truthfully not much changed
I didn't watch the video. That said, I would think it's less a matter of readjusting to culture (though things are changing faster now than they used to, or so they say), and more a matter of adjusting from a forced (basically) regimen of having all your time filled with something of deep significance to having (potentially) no structure at all and being left entirely to yourself to figure out how to fill your time.
This is the same problem experienced by people who lose a loved one throug