the different brain development stages make perfect sense, especially have worked with ages 19-50+ the younger ones when willing to learn soak up everything they can, where the older they get the less they are willing to learn new things. "Can't teach an old dog new tricks" as far as where we access information was very interesting, working in a shop of 25+ technicians who all had different jobs in front of them and would have very different questions would require me to pull answers from different parts of the manuals, charging systems, transmission diagnostics, torque specs, tire pressures, valve… >>>