Truth is that a lot of folks do not. But it's all proportional.
As I've stated before I started lifting at 14. Longest stoppage in my life was about 4 months.
I've being pursuing some kind of athletic goal for 20 years.
I suspect I'm used to it because I spent my formative gym years in a hardcore facility that had lots of serious powerlifters and bodybuilders. Although I never got involved to the level of the top dogs there, I was fortunate that most of them took a liking to me, and I learned a lot from them; everything from the ABC's of training, spotting, nutrition, even the PED end of things.
As such, I saw a lot of impressive feats, too. I know what has been, and can be done. While not everyone has enjoyed this exposure, I still wonder how many here
(not the training board) have even stepped foot in a gym.