That is not going to help him much now. Not everyone has or could have started saving early in life. Some did not due to ignorance, some did not due to life circumstances, some did but other life events could have taken that from them (i.e bad investments, divorce, medical issue, or 100's of other things).
Just because you have the luck and privilege to be on the FIRE path does not mean everyone else is as lucky or choose that path. This person may have not planned to retire early and looking back now wished they had made that plan in the 20's. The road not taken an all that...
>>Change jobs until you find a job like that. There are plenty, I can assure you.
Again it would seem you are taking your anecdote and applying it globally. This is very region specific and I can assure you in my region there are exactly Zero jobs in IT that allow you to start at 10am, take a 2-3 hour lunch, and knock off an 6pm...
I will not implicitly state those are not common, but I can not imagine a region where they are?