This entire thread is based on a bullshit presumption with no evidence.
It was simply a question, and not one that is that unbelievable.
Since the 90’s most race car series have moved to sequential. Except for NASCAR almost every race series has been sequential for the last 15 years. Most young drivers have therefore never raced manual.
Over the last twenty years road cars have gone the same way. Supercars or luxury cars will not have a manual option. Electric or hybrid the same. Most medium to large SUV, people movers, or family cars will be auto only. Essentially the only thing with a manual these says will be small hatch backs, entry level sports cars (e.g 86), or base medium sized family cars (and all these will have auto options or even possibly sequential for a performance model).
When you look at auto trends for the last 20 years, a young driver never driving a manual is not impossible. It’s no more crazy than a driver Vettel's age never having driven a crash gearbox or a car with a manual choke. So even if Verstappen, Noris, Russel, etc have all driven manual, in the next several years it’s almost guaranteed that there will be a young driver who hasn’t. It’s no way an attack on their ability for never using increasingly rare and outdated tech and simply a consequence of the age they were born into.