Sadly you find them in any kind of group. Look up Dunning-Kruger Effect and add in some brand snobbery and you get my point.

Remember the old adage, “There is more than one way to skin a cat.”

Sounds more like this is what worked best for him so it must be best for everyone. I’ve never shot professionally, though have been asked. I don’t think I’m good enough for a lot of projects, so I practice. Probably why I do mostly wildlife, never had a complaint.

Thanks to the joys of modern cameras, practice is a lot cheaper than the old days of film. Finding willing subjects is the only obstacle. Family, friends may be able to help.

Just have a good idea what you want your end result to be and how you wish to obtain it and see if it works.