I was basically sterile at age 29 from 4 years of driving 3500-4000km a week, constant prostatitis with everything that comes with it. Quit driving, first son was born a year later, although had been trying without a result for a couple of years by then. Second one soon followed.
Got back to driving a few years later and albeit was a much easier job, the numb pain while sitting returned. Got out of driving again a few months back, can’t really see it as something I could be doing until retirement healthwise. Sitting affects some more than others, unfortunately I fall into the “more” category.