True!
However, house bashing is quite straightforward and the circuits are pretty similar on every job.( 2year apprenticeship and your good to go)
Auto electricians work on far more complicated systems that are prone to more abuse than a domestic wiring circuit.( however its still a short apprenticeship)
Electrical engineers in Industry probably have it the hardest! To be fair.
As they work on all systems!
Domestic, motorised, robotic, machinery of all types, and have to be able to fault find on various PLC,s ( alan bradley,siemens,mitsubishi,gem 80, Etc etc as well as program the software.( apprenticeship is minimum 4 years but you never stop learning!)