As a rule of thumb I always ask how much people want to know about the repair or cause of damage. I use diagrams, pictures, videos and diagnostic reports to aid with understanding the damage, fault and recommendations needed.
Another question is How much understanding of car repair or car mechanics do you know?
Is not about knowing or not knowing but it’s about being able to properly communicate the damage or current state of the vehicle.
With that in mind - how much do you know about cars 1-5. 5 being able to distinguish between the need of a rubber gasket, composite, metal or RTV and the difference amongst them. 1 being how to drive the car and put gas ⛽️.
No wrong answers :)