As a matter of fact, the new boiler my plumber (who has a webpage and I found online, mind you) recently installed has computer chips and circuits. My plumber seems very technically literate and knowledgeable about the tech as well.
Police offices are now using AI to catch people. Even before, they were using computers in criminology for DNA samples.
So all of the professions you listed use computers all the time for their job. Both directly and indirectly. A baker without internet, a plumber with no computer knowledge, a police office stuck using analog tools are all worse off than their tech savvy counterparts.