Lilydale teach the old school way, pencil, chart, whizz wheel. No EFB until you've got your certificate or licence.
I do use the EFB predominantly now, but I use the flight plan to set my heading and the Chart to verify what I see on the ground matches where I'm supposed to be. The magenta line may get a cursory look, but it's not how I navigate with the EFB.
I've been caught out once with a EFIS showing a compass heading 20 deg off course, I didn't verify it with the old school compass either. Took off from Lilydale headed to Caulfield Race course to track the VFR route west, set heading using the EFIS and merrily flew along, aiming at the big green patch I could see ahead. No need for checks, it's 15 minutes, how far wrong can you get in 15 minutes?
Instructor evetually asked, "do you know where you are?" In that voice that instructors have when you've done something wrong, and they want you to realise it.
"I think that's Caulfield, but now I'm not sure" I reply.
"Well, it isn't" he replies!
insert long pause here
"You'll want to turn hard right now, before you bust into Moorabbins Class D" he says π²
So that Nav was done and we go back to Lilydale to debrief my multiple errors π
It was an excellent lesson to learn with an Instructor next to me.
On topic - my point is, having an accurate compass is particularly helpful. I've had to use it 3 times so far when either the EFIS or DG has decided to have the day off.