Good point. Knowing it could be done would have been good enough for her, because then she would have known to ask someone to help her. If you have at least an idea of what's possible, you can then have a good idea when it makes sense to ask the expert to give you a little help.

She certainly would never _need_ to know how to do it herself, although there's nothing wrong with that. If she were asking the expert for something every day, then it might make sense to teach her more, but if the requests are infrequent and not time-consuming, then the productivity wins can be had without teaching someone something she doesn't need to know.