07-09-2023, 09:17 PM
Because they don't know them, and anything new is scary, and the potential for a ramp/bay to be taken up is too big a risk.
However, you're pretty lucky, because it's not a particularly difficult job, and there are a few of us who are more than willing to provide assistance and guidance. We must have done 10 cambelts at my Garage Weekends over the years.
It's a shame, but that, unfortunately, is the way it is currently... :(