As neither military nor 121, I've always wondered how folks make the transition. I suppose like anything else, it's ultimately the individual's attitude. Paco Chierici addresses this in his interview with Ward Carroll. He talks about "quitting cold turkey" and joining the airline world, then being very thankful that he received a call to join VFC-13 as an F-5 adversary pilot. He refers to it as the methadone to help him keep is hand in the game and make the transition. I would think also, after X years of yanking and banking, the neck and back start to become less forgiving, and straight and level provides the view and travel without destroying one's spine.
I watch way too many hours of interviews on Youtube with Naval Aviators. I'm often struck by how "dramatic" the change is. A lot of these guys have successful, storied careers in the Navy, and then transition to a drastically different kind of flying. For instance, Greg Woolbridge has led the Blues on 3 separate occasions and went to FedEx, starting as an FE. Saccomando was an F-14 demo pilot and later a Blue Angel that went to Continental, furloughed, flew for the FBI for 7 years, then 2 years at Under Amour (has a cameo on Ballers), and then to United. And, Alaska's very own Larry Packer was a Blue too. But, what really strikes me the most is how humble all these guys are. And great sense of humor. They just seem like really nice dudes.
BTW, I haven't watched a C.W. Youtube in a long, long time. I just never connected with him or his content presentation (which may explain the comments about him). Also, I tried very hard not to use callsigns, but it's difficult because unless one is paying close attention to the intro's, they use their callsigns frequently throughout the interview

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Lastly, as a side note apropos of nothing, I've always scratched my head regarding the Navy leaving Miramar for Lemoore. I lived in Fresno for 2 years, and while the people were amazing, the Central Valley is...well... not like San Diego. Think about the young s hot pilots being in Lemoore knowing that their predecessors partied in SD.