I haven't really seen mechanics reskill, what local shops seem to do is to employ separate "electronics people" as another specialization - like they already ha

I haven't really seen mechanics reskill, what local shops seem to do is to employ separate "electronics people" as another specialization - like they already had bodywork handled by separate people who do all the bodywork and nothing else; so now they have "classic mechanics" working on the mechanical parts (which, frankly, is most of the work) and whenever OBD shows something nontrivial they hand it off to someone who does nothing else but debugging ECUs and sensor/wiring issues.