> Is this a matter of domain familiarity, perceived craftsmanship, or simple cultural gatekeeping?
Likely all of the topics covered in the question. aka Takes time/money to train/become skilled in given professional area. Things that undermine that money/time/training in way that have to retrain before the professional investment paids off tend to cause issues. Legal framework hasn't caught up with changes, so difficult/more costly & time consuming to resolve issues that do happen.
'Historical' parallels abound:
--- 1800's introduction of camera / fax machine[4] vs. portrait artist; vs. history of kodak & digital camera[1]; xerox[2]/ibm & pc[3]!
--- car/automation vs. blacksmith/coachman/horse related jobs;
--- car/us urbanization vs. door to door sales/professional services aka house calls. Although, car delivery services paired with internet ordering/video teleconferencing kinda reinventing/rediscovering the historical door to door sales/professional services. (where covid-19 helped expidite the conversion to making use of on-line offerinngs)
--- Sears orignally sold by catalog / inspiring 'towns by the rail road' vs. amazon, no physial store, sells by internet/mail delivery aka no multi-physical store rent/overhead vs.phyiscal stores "free delivering with in store pickup". Perhaps at some point this concept will yet again change to something akin to send the software specs to print out non-food/food items on one's home 3d printer.
--- Some what dependent on where one lives, but grocery store 'call-in', pick-up & delivery. (touching on historical sears & railroad in western US, vs. physical stores & customer proximity in eastern US.) Although, with overnight/speedy delivery, could technically overcome store geographic differences. -- aka amazon free delivery $14 month to places in alaska only reachable by air service (minimum air service flight charge before freight charge way beyond cost of 'small order'. (2015, bit dated: [0]))
--- Harder to find references, but mainframe staff/administrative support vs. home pc vs. cloud services vs. mobile phone & internet/services.
--- requirement of college class in philosophical logic when seeking a bachelors degree.
--- computer science/information science merged into 'data science'
[0] : https://www.adn.com/business/article/amazon-prime-eases-rura...
[1] : https://www.weforum.org/stories/2016/06/leading-innovation-t...
[2] : https://inspireip.com/xerox-failure-reasons/
[3] : https://spectrum.ieee.org/how-the-ibm-pc-won-then-lost-the-p...
[4] : https://www.damninteresting.com/curio/the-fax-machines-of-th...
'electronic pixelated images' :
https://artsandculture.google.com/story/phototelegraphy-inventions-that-transported-images-worldwide-museum-for-communication-berlin/
https://en.wikipedia.org/wiki/John_Logie_Baird
https://en.wikipedia.org/wiki/Digital_photography