Which is why the ninja clutch has a MILEEEEEEEE long friction zone! lol
I also assume you rode a clutched something atleast once befor your dads lesson.
I have shown about 30 people over the few years learn for the first time to ride a quad, dirt or street bike… a few didnt stall and were ok, all with zero concept hit the grass/pavment learning. and I teach the "let it out slow, once it starts to move STOP letting the clutch lever out unil you reach this point (parking grid line 15’ or so away, twig in the lawn) so they feather the piss out of it… they do that a bunch of times 10 mins later, forget and clunk clunk, stall.